The correct answer is option B, mineral composition
Gneiss is made up of medium to coarse grains and is a semischistose metamorphic rock. Its consists of quartz and feldspar, biotite, hornblende, garnet or graphite. Being formed under high temperature and pressure, gneiss can only be weathered through chemical processes. The quick chemical weathering usually happens when the grains are small in size but in case of gneiss grains being large in size are difficult to be weathered.
The property of the gneiss sample that likely prevented it from weathering is its mineral composition.
The resistance of gneiss to weathering is partly due to its mineral composition, which usually consists of mica, feldspar, and quartz. Because these minerals are strong and chemically stable, weathering forces like wind, water, and temperature fluctuations are less likely to break them down.
Over time, their ability to withstand both chemical and physical changes contributes to the preservation of the gneiss rock's integrity by averting major weathering. Because of this, gneiss is a long-lasting and resilient rock type that keeps its structure and appearance across a variety of weathering processes.
Flesh-eating parasitizing maggots are the offspring of the fly, Ormia ochracea, which invaded Hawaii from North America. The adult flies follow the chirps of a calling cricket and then deposit wriggling maggots onto the cricket's back. The maggots burrow into the cricket, and emerge, a week later, killing the cricket in the process. Between 1991 and 2001, there were documented major declines in the island's cricket population. In one study, 30% of calling males were infested with the parasite, and in 2001, the island was virtually silent. But in 2003, the cricket population had rebounded. Crickets were back but they were silent crickets! What is the BEST explanation of how this happened?
The silent crickets survived because they weren't located by the Ormia ochracea flies. When these silent crickets reproduced, the 'silent' trait was passed on to the offspring. Over time, the cricket population rebounded, but with crickets that were silent due to this evolved defense mechanism against the lethal parasites.
Explanation:The best explanation for the revival of the silent cricket population relates to evolutionary adaptation and behavioral changes brought on due to parasite infestation. The silent male crickets likely survived the parasite infestation because, not producing any sound, they were not detected and targeted by the Ormia ochracea flies whose maggot offspring are deadly for the crickets. Essentially, the flies were unable to locate the silent crickets.
These silent males reproduced with available females, passing on the 'silent' trait. Over time, the cricket population rebounded, but these new generation of crickets had evolved to be silent as a defense mechanism against the fly parasites. This demonstrates a clear case of natural selection, where the trait providing a survival advantage in a given environment increases in frequency within a population over successive generations.
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Adaptation through natural selection led to the rebound of the cricket population in 2003. Silent crickets, less noticeable to the deadly flies, survived better and passed on more of their genes, resulting in a predominantly 'silent' cricket population.
Explanation:The best explanation for the rebound of the cricket population by 2003 is the concept of adaptation due to natural selection. Cognizant of the dire threat presented by the maggots released by flies, some of the crickets likely underwent mutation that silenced their chirps, which renders them less noticeable to the flies. These silent crickets could survive better, reproduce more, and pass on more of their genes, including potentially the gene causing silence, to the next generation. This process of natural selection would eventually lead to a predominantly 'silent' cricket population. Elaboration The rebound in the cricket population aligns with how species adapt to predation pressures. If a species is strongly preyed upon, individuals with traits that make them less likely to be killed by predators will pass on their genes more frequently, leading to a population change.
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Describe 2 ways that Newton’s Laws can apply in a car crash.
newtons first law : an object (example a car) at rest will remain at rest and an object in motion will stay in motion until acted upon by an unbalanced force.
newtons second law : force ( if the car has an increase in mass, you must increase force to have the same resulting acceleration).
Newton's laws of motion explains the magnitude and direction of the forces acting on the car in a car crash.
What are Newton's law of motion?Newton's law of motion describes the motion of objects.
There are three Newton's laws of motion.
The second and third laws of motions can be used applied in a car crash.
Newton's third law of motion law of motion states that action and reaction are equal and oppositel.Newton's second law of motion states that a force applied to an object at rest causes it to accelerate in the direction of the applied force.In a car crash, the cars receive an equal but oppositely acting reactionary force to the force they apply.
Also, in a car crash, the object hit by a car accelerates the object that it crashes on.
Therefore, in a car crash, Newton's law of motion explains the magnitude and direction of the forces acting on the car.
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Which component of the cell membrane functions to actively transport molecules into the cell
The protein component of the cell membrane function to actively transport molecules into the cell.
What is the cell membrane?All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane. The movement of materials into and out of the cell is controlled by the cell membrane.
A cell is protected by its cell membrane, also known as the plasma membrane. Additionally, it maintains a constant microenvironment within the cell, and also that membranes serve a variety of purposes. One is to move compounds out of the cell that is harmful as well as nutrients into the cell. Another is that there will be proteins on the cell's membrane, which is its plasma membrane, that communicate with other cells.
These proteins may be lipid proteins, which include both a protein and a fatty acid, or they may be glycoproteins, which contain both a protein and a sugar moiety. Additionally, those proteins that adhere out of the cell membrane enable cell-to-cell communication.
Additionally, a cell's membrane offers some structural support. Additionally, various cell kinds have distinct types of plasma membranes, and the lipid component of the plasma membrane generally contains a lot of cholesterol. This is distinct from a few other membranes found inside the cell.
There are several plants and microorganisms, such as algae and bacteria that have various defense systems. They really have a cell wall surrounding them, which is stronger and more sturdy than a plasma membrane.
Therefore, proteins are the components involved in active transport.
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many different types of mutations can occur within the body. An individual experience a mutation that changes a base in a tRNA strand, but during translation the tRNA strand still creates the same protein. Which type of mutation is responsible for the change in the tRNA base
I guess the answer for this would be the DNA but i'm not sure tho, I haven't see this things since a long time.
Answer:
Silent mutation.
Explanation:
A silent mutation may be defined as a change in the single nucleotide base without any change in the amino acid and result in the formation of the same protein.
Mutation has changed a single base of tRNA strand but this does not change the protein product. This means the mutation has not changed the amino acid.
Thus, silent mutation is responsible for the change in the tRNA base
Notice in the image of the plant that both oxygen and carbon dioxide enter and exit the plant. Using what you know about photosynthesis and cellular respiration, explain this phenomena.
As you observe in the image, both 02 and CO2 enters the plant and both are utilized by the plants as well in the process of respiration and photosynthesis respectively. Look at the reaction:
During Respiration O2 is utilized and CO2 is liberated out by the plant:
oxygen + glucose -> carbon dioxide + water + heat energy
During Photosynthesis CO2 is utilized and O2 is released:
carbon dioxide + water+ light energy -> oxygen + glucose
During photosynthesis, plants create their own food (glucose) whereas during respiration, plants consume glucose and convert it into energy which fuels the plants cellular activities.
The Answer Fam Is
Plants require carbon dioxide for photosynthesis and produce oxygen as a byproduct. They then use the oxygen released in cellular respiration, producing carbon dioxide as a byproduct.
Which human organ system produces hormones to regulate growth, development and reproduction?
A.circulatory
B.digestive
C.nervous
D.endocrine
D. Endocrine. It produces and secretes hormones, which regulate cells and organs.
The organ system that produces hormones to regulate growth development and reproduction is endocrine system.Example that can be said is thyroid gland,adrenal gland,pancreas etc..
Explain why scientist believe the warm climates provide greater biodiversity
Warm temperate climates are classified as a climate region with distinctive summer and winter seasons. This kind of climate help in maintaining constant body temperature.
Biological diversity (biodiversity) refers to the diversity of life throughout all levels of biological organization, including not only the total number of life forms found in a given region but also the scope of variations among those forms.
Biodiversity encompasses everything from genetic variation within a single simple population to the diversity of ecosystems throughout the world.
Scientists believed the warm climates provide greater biodiversity because there is an abundant amount of rainfall seasonally in the warm climatic region to increase crop productivity which in turn results in greater Biodiversity.
Also, in the warm-climate region, species are exposed to greater genetic diversity, this makes the species to be adapted to various conditions such as resistance to climate change, therefore increasing Biodiversity.
In conclusion, from the above explanation, we now have a clear understanding on how warm climates improve biodiversity.
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Why does mineral transport influence water transport?
Water moves upward through a plant through the xylem tissue. Along with water, xylem also transports dissolved minerals, and some small organic molecules. Three factors that influence the flow of sap through a plant include diffusion, transpiration and capillary action. Water transport occurs in a plant's xylem tissue.
Guard cells are responsible for allowing carbon dioxide to enter a plant. They also control the release of oxygen and water to the atmosphere. Based on this description, where are guard cells located? A. on the surface of leaves B. along the root system C. the interior portion of leaves D. within the stem
on the surface of leaves.
Answer: On the surface of leaves
(:
What type of erosin is it when earth worms are pushing the soil apart
ANSWER THIS ASAP!! A biome associated with fluctuations in water salinity will MOST LIKELY be found near the letter
A) A
B) B
C) C
D) D
it is c because there is land and water near it. i think
Answer:
The answer is C
Explanation:
A and B denote zones of river channels. In those zones, the river channels out to the sea. While A seems to be far from the sea coast, B is closer to the sea.
Zone D is oceanic zone and here the salinity will not fluctuate
C is zone where the river water mixes with the sea. This is termed as estuary where there are partially enclosed coastal bodies as there is flow of river or stream into the sea. Here the river freely connects with the sea. In other words, we can say this zone is transition place for the river environment and maritime environment. If biomes are situated here, it is sure to experience a mixup of saline water and river water bringing in fluctuations in salinity.
Why is clay classified as a silicate? (24 points)
A
Clay contains silicon-oxygen tetrahedra.
B
Clay easily fractures into sheets.
C
Clay contains silicon-carbon compounds.
D
Clay contains only silicon atoms.
The graph shows the number of calories two people burned while they perform various exercises for one hour. Which conclusion is supported by the graph?
1 ) The 200-pound person burns more calories per hour doing aerobics than doing any other exercises shown.
2 ) The 160-pound person burns about 50 calories per mile while jogging.
3 ) The 200-pound person would need to play volleyball for three hours to burn the same number of calories as he burns in one hour of basketball.
4 ) The 160-pound person burns about twice as many calories jogging as she does walking.
It could be number #3
Answer:
The correct statement is option 4, that is, the 160-pound person burns about twice as many calories jogging as she does walking.
Explanation:
The statement 1st is not correct as one can observe from the graph that the 200-pound individual burns more calories in an hour by doing jogging and playing basketball than performing aerobics.
The 2nd statement is also not correct as one can see that the 160-pound individual burns more than 50 calories per mile while doing jogging. The statement 3rd is also not correct as when a 200-pound individual plays volleyball for three hours then about 1000 calories will get burned, as in 1 hour of playing 350 calories are burned.
The last statement, that is, the fourth one is correct as one can see from the graph that a 160-pound individual burns approximately 600 calories by doing jogging and she burns 300 calories while walking.
Which of the following biological processes only occurs in organisms that are able to reproduce sexually?
In the first stage of sexual reproduction, "meiosis", the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During "fertilization", haploid gametes come together to form a diploid zygote and the original number of chromosomes is restored.
Meiosis is the answer
Is the Venus fly trap a plant? If it is why can't it make it's own food?
The Venus flytrap is a species of plant. It naturally occurs in areas such as bogs and marshes with very little nutrients such as nitrogen. As such, it has evolved to capture prey such as insects, spiders, and other invertebrate and small vertebrates to digest, allowing it to gain nutrients from its food. Hope this helped!
Cystic fibrosis is a lethal, autosomal recessive genetic disorder. Which statement BEST explains how cystic fibrosis is maintained in the gene pool? A Organisms that are heterozygous can pass on only the dominant allele. B Organisms that are homozygous-dominant pass on either dominant or recessive alleles. C Organisms that are heterozygous can pass on either dominant or recessive alleles. D Organisms that are homozygous-recessive pass on only the dominant allele.
The right answer is : A Organisms that are heterozygous can pass on only the dominant allele.
Cystic fibrosis is a genetic disorder affecting the glandular epithelia of many organs. It is the most common lethal genetic disease with autosomal recessive inheritance in Europoid type populations, whereas it is very rare in African and Asian populations.
For a heterozygous subject, he has a recessive allele (the mutated allele) and a dominant allele (normal). In this subject the disease is not expressed as it is recessive compared to the normal allele, therefore, only the dominant allele will be expressed in subjects heterozygote for cystic fibrosis.
The child of a short mother with black hair and a tall father with red hair is tall and ugh black hair. This occurred because
Mother: Dominate trait is black hair, Recessive trait is short.
Father: Dominate trait is tall, Recessive trait is red hair.
Child has all traits, but only the dominate traits show through.
Tropical zones Wind that moves east to west
The trade winds in the tropical zones are persistent, east-to-west winds influenced by the subtropical highs and the Coriolis effect. They converge at the Intertropical Convergence Zone (ITCZ), leading to wet conditions and the potential for tropical storms, and also contribute to oceanic upwelling. Additionally, outside of the tropical zones, westerly wind patterns known as the westerlies occur between latitudes 30° to 60°.
The zones near the equator where winds move predominantly from east to west are influenced by the trade winds. These trade winds are a component of the Earth's atmospheric circulation system and are moderate but persistent throughout the year. They mainly occur over the oceans and are particularly relevant in the tropical zones, pushing air towards the equator from the northeast in the northern hemisphere and from the southeast in the southern hemisphere.
Trade winds are steered by the subtropical highs and the Coriolis effect, which causes them to bend slightly to the right in the northern hemisphere and to the left in the southern hemisphere. When these winds converge near the equator, they form the Intertropical Convergence Zone (ITCZ), characterized by calm and wet conditions, which can give rise to tropical storms. These persistent east-to-west winds also facilitate oceanic upwelling and the transport of cold water across the Pacific Ocean.
Lastly, on the poleward side of the subtropical highs, the airflow contributes to the creation of westerly wind patterns, known as the westerlies, between the latitudes of 30° and 60° both in the northern and southern hemispheres. These dynamic air movements and their resulting climates play a crucial role in weather patterns around the globe, especially in the tropics and subtropics.
Which organ system is NOT used to obtain nutrients from food
The answer would be respiratory because that system is used to breath oxygen and exhale carbon
The nervous system is the organ system that is not used to obtain nutrients from food. The process of nutrient acquisition primarily involves the digestive and circulatory systems. The nervous system plays no direct role in the digestion or transportation of nutrients.
Explanation:
The organ system that does not contribute to obtaining nutrients from food is the nervous system. The process of obtaining nutrients from food primarily involves the digestive system, which breaks down the food into essential components like carbohydrates, proteins, and fats that our bodies can use. This includes organs such as the mouth, stomach, and intestines. Additionally, the circulatory system plays a vital role in transporting these nutrients to different parts of the body. The nervous system, on the other hand, is responsible for receiving, transmitting, and interpreting sensory information, playing no direct role in the digestion or transportation of nutrients.
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What layer of the skin consists of many epithelial cells
Answer:
The Epidermis
Explanation:
The epidermis is composed of keratinized, stratified squamous epithelium. It is made of four or five layers of epithelial cells, depending on its location in the body.
Which of the following substitutes can help reduce air pollution. A. Using a bike instead of a car B. Using dumps instead of landfills C. Using coal instead of oil D. Fireplaces instead of a wind farms
The correct answer is option A
Any undesirable particles or substance in the air is responsible to cause air pollution. This can be reduced using certain ways.
By using bike instead of using car is less harmful as compared to that of car. The amount of pollutant released into the environment by car is more as compared that of bike. The amount of harmful gases like carbon dioxide, sulfur dioxide, nitrogen oxide from bike is less as compared to that of car.
Two lines perpendicular to one another can represent a _____-dimensional coordinate system.
A. 2
B. 3
C. 4
B would be your answer, let me know your scores.
Answer:
B. 3
Explanation:
The Cartesian plane consists of two perpendicular lines called x-axis and y-axis which, together with the intersection point (the origin), define a two-dimensional coordinate system that makes it possible to specify the location of points in the plane. Following this same line of reasoning, to describe the location of a point in space we need to introduce a third dimension into the two-dimensional system. For this, from the Cartesian plane, we define a z axis (perpendicular to both axes) passing through the origin which, together with the x axis and y axis will constitute our three-dimensional coordinate system.
Accordingly we can say that two perpendicular lines can represent a three-dimensional coordinate system.
PLZ ANSWER ASPA which of the following is an example of natural selection? Explain why. A. cricket frogs prefer to sleep during the day,while red-eyed tree frogs prefer to sleep during the night. B. rabbits with a mutation for longer,thicker fur survive an unusually cold winter,while many normal rabbits do not survive. C. to produce a more desirable fruit,a farmer crosses a tree that produces sweet oranges with a tree that produces large organges. D. pesticides are sprayed in a field, resulting in an increase in crop growth and a decrease in insect population.
Final answer:
Option B illustrates natural selection, where rabbits with a heritable trait - longer, thicker fur - survive an exceptionally cold winter better than rabbits without this mutation, leading to a genetic shift in the population.
Explanation:
The example of natural selection provided in the student's options is B. rabbits with a mutation for longer, thicker fur survive an unusually cold winter, while many normal rabbits do not survive. This situation illustrates natural selection because it demonstrates an environmental pressure - the unusually cold winter - which leads to differential survival based on a heritable trait - the longer, thicker fur. As a result, rabbits with the mutation are more likely to survive and reproduce, passing on the gene for thicker fur to the next generation, thereby changing the genetic make-up of the rabbit population over time.
Could someone please help me with this?
it (B)
The allele for purple flowers is dominant to the allele for white flowers.
I HOPE THIS HELP:)
A rollercoaster car at the top of the hill,and a slope that sits above a dam are all examples of what kind of energy?
Potential energy; energy created by the position of an object.
Why is it important that farmers plant crops during the winter that improve the levels of nitrogen in the soil?
These crops can fix nitrogen into usable nitrates.
These crops have root nodules that contain bacteria.
These crops produce fruit that quickly decomposes into usable nitrogen.
These crops all use nitrogen in their specialized photosynthesis process.
Answer:
These crops can fix nitrogen into usable nitrates.
Explanation:
There are certain crops which are called cover crops, specifically legumes like peas, vetch,clover and winter field beans . Farmers grow these crops during winter before the growth of actual target crops like cabbage etc which are thirsty for Nitrogen.
What is special about these cover crops is their ability to fix nitrogen into the soil from the atmosphere. There are various ways through which these leguminous crops can fix nitrogen into the soil:
Some legumes like hairy vetch and crimson clover, may fix upto 100 pounds of nitrogen per acre for the utilization by the crop growing in same soil next season.Other legumes like red clover and bigflower vetch can fix from 30 to 80 pounds of nitrogen per acre .Now how the legumes fix nitrogen is through a symbiotic relationship with soil-dwelling bacteria. These are the bacteria that dwell in soil and take nitrogen from atmosphere and provide this nitrogen to leguminous crops through roots which later fix this nitrogen into nitrates.In return, the bacteria can get food in the form of carbohydrates from legumes.This phenomenon confers the leguminous crops with an ability to fix nitrogen in the soil that can be used by the nitrogen requiring crops like cabbage when grown next season in same soil.
Hope it help!
Nitrogen fixation is the process by which nitrogen present in the earth,s atmosphere is converted into ammonia or to the interconnected nitrogenous compounds. Nitrogen fixation is important to life because fixed inorganic compounds are essential for the biosynthesis of the nitrogen containing compounds.
Some plants such as legumes have collaborating relationship with the diazotrophic bacteria which fix atmospheric nitrogen into ammonia. These bacteria contain nitrogenase enzyme whici is responsible for biological nitrogen fixation. The reaction for the nitrogen fixation is as follows
[tex]N_{2} +8H^{+} +8e^{-} -->2NH_{3} +H_{2}[/tex]
The majority of the plants which show symbiotic relationship with the diazotrophic bacteria are legume plants which belongs to Fabacae family.
Since most of the legume plants are grown during the winter season these plants fix nitrogen into suitable nitrates.
Therefore the answer is these crops can fix nitrogen into usable nitrates as most of the legume plants are grown during winter.
Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis?
Mitosis is when the cell begins to divide and the cell membrane and the cytoplasm split apart and the chromesomes that act as a nuclei get replaced and a nucleus is formed in 2 identical copies of a diploid cell (daughter cells )
Answer:Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.
Explanation:It cant break apart then copy the DNA.That does not make sense.
someone please help with this question!!!! Describe how an indicator can be used to determine if starch diffuses through the membrane into the beaker i need help with this hw question
Add starch indicator solution to the water in the beaker. If the indicator solution changes color than starch is present.
An iodine indicator can be used to test whether starch has diffused through a membrane into a beaker by reacting with starch present to produce a blue-black color. However, starch molecules are generally too large to pass through the membrane. The iodine molecules, which are smaller, can do so and react with any starch within the bag.
Explanation:One can use an indicator such as iodine to test whether starch has diffused through the membrane into the beaker. Iodine reacts with starch to produce a blue-black color, serving as a clear visual indicator of the presence of starch. If the beaker's solution turns blue-black after adding iodine, this would suggest that starch has indeed diffused through the membrane.
However, you must remember that the dialysis tubing simulates a semi-permeable membrane, and larger molecules like starch often cannot pass through. The iodine, on the other hand, being a smaller molecule, can pass through the membrane and react with any starch present inside the bag to give the blue-black color.
To interpret the results, if the surrounding water in the beaker turns blue-black upon adding iodine, it can be inferred that starch has diffused out of the membrane, though unlikely. But if the color change is only observable within the dialysis bag, the starch did not pass through the membrane and has instead reacted with iodine that diffused into the bag.
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After millions of years, nonliving chemicals will become living.
True,
False.
the answer for this question is false.
All living things need energy to perform their life processes. How and where do they get the energy that they need? A. the production of carbon dioxide through the process of photosynthesis B. the absorption of light that radiates from the Moon C. the oxidation of food through the process of cellular respiration D. the fixation of nitrogen gas from the atmosphere
RE: "A."
Plants get energy from the sun (photosynthesis), but the production of Carbon Dioxide does not give any living thing the energy to perform their life processes.
RE: "B."
The Moon's reflective light does not give any living thing the energy to perform their life processes.
RE: "C." [Best answer]
The breakdown of food does give any living thing the energy to perform their life processes.
RE: "D." Plants' roots "fix" Nitrogen gas from the atmosphere, but that does not give any living thing the energy to perform their life processes.
Final answer:
The correct option is C. the oxidation of food through the process of cellular respiration. Living things acquire the energy they need to perform life processes primarily through cellular respiration, where food is oxidized to release energy. This stored energy originates from photosynthesis, where plants convert sunlight into chemical energy.
Explanation:
All living things need energy to perform their life processes. They obtain this energy in various ways. One critical source of energy is the process of cellular respiration, where organisms oxidize food to release energy. This is option C: the oxidation of food through the process of cellular respiration. However, it's important to note that the ultimate origin of much of this energy is the sunlight captured by plants and other autotrophs through photosynthesis. In photosynthesis, light energy is converted into chemical energy, which is stored in carbohydrates. Cellular respiration then breaks down these carbohydrates to power the life processes of both plants and animals.