A family has two male children one brother has a straight thumb a straight thumb while the other brother has a bent thumb what causes this difference
Answer: Due to different alleles.
Explanation:
Every trait is encoded by a particular gene and each gene has various alternative forms. These alternative forms of a given gene are known as alleles.The alleles that encode the shape of the thumb are of two types - one is the S allele which encodes a straight thumb and is dominant in nature whereas the second allele is the h allele which encodes for the bent thumb and is recessive in nature.Thus, the two children have different thumbs as they have received different alleles from their parents.Three plants were tested under Red, Green and Yellow light. The growth of the plant was measured in centimeters.
What is the independent variable?
List three reasons that snow predictions made by meteorologists are sometimes incorrect. Explain your response.
Answer:
The following are the three reasons due to which sometimes the snow predictions made by the meteorologists are incorrect:
a. Over-dependency on computers and not performing field works.
b. Sometimes the presence of pollutants in the air makes weather forecasting tougher.
c. In the majority of the situations, the meteorologists based their results on probability, and thus, chances of errors upsurges at certain times.
music question down below
Answer:
Strings
Explanation:
Band is a group of blowing instruments if that makes any sense
music question down below
Answer:
B (Second one)
Explanation:
the inscription on a marble gravestones become harder and harder to read over time. this is caused by ?
A. chemical weathering
B. frost wedging
C. evolution
D. mechanical weathering
What proof is there behind evolution?
The evidence for evolution is supported by molecular evidence, fossil evidence, and evidence from living species.
Explanation:The evidence for evolution is compelling and extensive. Looking at every level of organization in living systems, biologists see the signature of past and present evolution. Darwin dedicated a large portion of his book, On the Origin of Species, to identifying patterns in nature that were consistent with evolution, and since Darwin, our understanding has become clearer and broader.
In terms of molecular evidence, scientists have confirmed conclusions about evolution by studying molecules and DNA. For example, by analyzing DNA sequences or amino acid sequences, molecular clocks can be used to determine how closely species are related to each other. The fewer the differences, the less time has passed since the species split and began evolving into different species.
In addition, fossil evidence also supports evolution. Fossils provide a record of organisms that have lived in the past, and studying them has revealed how organisms have changed over time. Furthermore, comparing the anatomy, embryos, and DNA of modern organisms provides further evidence for evolution.
HALP VERY IMPORTANT PLZ GIVE GOOD ANSWER
Doing labs involves more than just following the steps of the scientific method true or false?
Can you die from drinking too much water? Explain using evidence about osmosis and cells.
Drinking too much water too quickly can lead to water intoxication. This causes the dilution of electrolytes, an osmotic imbalance in cells, and potentially fatal cell swelling. Osmosis drives water into or out of cells to balance solute concentrations, and severe disruption can be lethal.
Explanation:Yes, you can die from drinking too much water; this condition is known as water intoxication or hyponatremia. When you drink excessive amounts of water in a short period, it dilutes the sodium in your bloodstream. Cells must maintain a specific osmotic pressure to function correctly. Water intoxication occurs when the dilution of electrolytes in your blood causes an imbalance, leading to an influx of water into your cells. Cells swell as the water moves inward to balance the concentration of solutes on either side of the cell membrane due to osmosis. This swelling can lead to dangerous swelling of the brain, among other complications.
In the case of drinking a hypotonic solution like distilled water in vast amounts, you're introducing a fluid with lower osmotic pressure into your body. Our body cells, which have a higher solute concentration compared to the hypotonic solution, will draw water in to achieve equilibrium, potentially causing the cells to expand and rupture (hemolysis). Conversely, drinking a very salty solution like seawater, which is hypertonic, would cause your body cells to lose water and possibly shrink (crenation). Osmotic balance is critical for cells to function properly, and severe disruption can lead to cell and tissue damage, and ultimately death.
some enzymes may be used to stop a reaction from moving forward
true or false
a chemical reaction producing energy for a cell is
a. Embden-Meyerhof Pathway
b. Glycolysis
c. Production of ATP occurs in the mitochondria in eukaryotes or on the plasma membrane of bacteria
d. All of the above
How is the Burmese python impacting the Everglades ecosystem?
Answer:
Can you plz give the other person brainliest, thx to her I got a 100%
the nucleus of the cell membrane is
What organelle Captures energy from the sunlight and uses it to produce food in plant cells?
During photosynthesis, chloroplasts capture energy from the sunlight and use it to produce food in plant cells.
What is photosynthesis?It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.
Some of the energy which is converted is stored in molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.
The process begins with proteins absorbing light energy which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.
Learn more about photosynthesis,here:
https://brainly.com/question/26494694
#SPJ2
Sulfur dioxide _____.
creates a reddish-brown haze in the sky
is a secondary air pollutant
has an irritating odor and is colorless
is relatively harmless to the environment
Answer:
C) has an irritating odor and is colorless
Explanation:
Sulfur dioxide is a colorless gas with a strong, irritating odor. It is a secondary air pollutant, meaning that it is not emitted directly into the air but is produced when primary pollutants react with other substances in the atmosphere. Sulfur dioxide can create a reddish-brown haze in the sky, but it is generally considered to be relatively harmless to the environment.
what is the difference between wet air and dry air?
Which of the following is the best description of the fluid mosaic model? A stationary triglyceride bilayer with fluid proteins. A stationary phospholipid bilayer with proteins that change positions. A fluid triglyceride bilayer with embedded proteins. A fluid phospholipid bilayer with embedded proteins.
The fluid mosaic model is a description of the cell membrane structure, which includes a fluid phospholipid bilayer with embedded proteins that can move and change positions.
Explanation:The best description of the fluid mosaic model is a fluid phospholipid bilayer with embedded proteins. The model describes the structure of the cell membrane, which is composed of a double layer of phospholipids with proteins embedded within it. The phospholipids can move laterally within the bilayer, hence the term "fluid", while the proteins can also move and change positions. This model helps to explain the dynamic nature of the cell membrane and its role in regulating the movement of substances in and out of the cell.
According to this model, the cell membrane is composed of a dynamic and flexible phospholipid bilayer in which various proteins are embedded. The phospholipid molecules have hydrophilic (water-loving) heads and hydrophobic (water-repelling) tails, arranging themselves in a bilayer with the heads facing outward and the tails facing inward.
The embedded proteins in the membrane can move laterally within the bilayer, and they have diverse functions, including transport, signaling, and structural support. This dynamic nature of the cell membrane allows it to adapt to changing conditions and perform its essential roles in cellular processes.
Learn more about Fluid Mosaic Model here:https://brainly.com/question/14871353
#SPJ12
Why should we learn about cells? Write a small 11 sentence paragraph please :) thanks
ASAP!!!! What is the function of the organelle identified as #6 in the picture (it is mostly brown, folded over, and is in the lower right part of the cell)?
A) movement
B) houses the cells DNA
C) house the digestive enzyme
D) packages proteins for transport out of the cell
Answer:
The correct answer is option D. packages proteins fr transport out of the cell.
Explanation:
The given image is a model of cell that shows all the organelles present in the cell. The #6 is the golgi apparatus that is a brown, folded and present at the lower part of the cell.
The golgi apparatus plays an important role in cell. It is the site of modifying, packaging and transport of the proteins out of the cell by the prcess of the exocytosis.
Thus, the correct answer is option D. packages proteins for transport out of the cell.
A fold in rock that bends upward into an arch is called a(n) a. anticline. b. syncline. c. plateau. d. canyon.
Answer: a. anticline
An anticline is a folded rock that bends upwards into an arch. The anticline rock is formed by initially flat rock that attains convex shape from upwards attaining an arch shape. In the process of formation of anticline rock, the older rocks gets deposited in the core region of the rock. Anticline rock formation is indicative of oil reservoir underneath. It is a source of natural gas, hydrocarbon oil like petroleum.
you are doing an experiment outside on a sunny day you find the temperature of some sand is 28 degress Celsius you also find the temperature of some water is 25 degrees Celsius explain the difference in temperatures/6947257/eea30378?utm_source=registration
The temperature of the rock is higher than that of the water because the specific heat capacity of the water is more than rock.
Specific Heat Capacity:It is the amount of heat energy required to increase the temperature of 1 kg of a substance 1°C.If the specific heat capacity of a substance is higher, then it needs more heat energy to raise its temperature.The specific heat capacity of the water is more than rock.Therefore, the temperature of the rock is higher than that of the water.
Learn more about Specific Heat Capacity:
https://brainly.com/question/1453843
why do cells have a plasma membrane?
A) to separate protiens from the nucleus
B) to distinguish plants from animals
C) to define the size of the cell
D) to separate the inside of the cell from its environment
plzz help well make brainlest plz answer in less than 10 minutes!!!!
what three elements are present in glucose fructose and galactose
Glucose, fructose, and galactose each are composed of the elements Carbon, Hydrogen, and Oxygen. They have the same molecular formula but are structured differently.
Explanation:The three elements present in glucose, fructose, and galactose are Carbon (C), Hydrogen (H), and Oxygen (O). These three sugars, often referred to as monosaccharides, have the same molecular formula (C6H12O6) but differ in structure, which makes them isomers. Their carbon atoms are arranged differently, and as a result, they have distinct properties and behave differently in the body.The three elements present in glucose, fructose, and galactose are carbon (C), hydrogen (H), and oxygen (O). These elements make up the chemical structure of the carbohydrates and determine their properties and functions.
Learn more about Chemistry of Sugars here:https://brainly.com/question/32770644
#SPJ6
Which statement best describes the plasma membrane? It is selectively permeable to certain substances. It is nonpermeable to substances outside of the cell. It is freely permeable to all substances. Its rigidity does not allow materials to enter the cell.
A Xw+m+Xwm female was mated to a XwmY male. Out of 1000 total F1 progeny there were 230 flies that were otherwise wild type with white eyes and 240 flies that were otherwise wild type with miniature wings. What is the distance between the genes for eye color and wing length?
Final answer:
In a genetic cross of Drosophila flies, a calculation based on the number of recombinant offspring indicates that the genes for eye color and wing length are A. 47 map units apart.
Explanation:
The distance between the genes for eye color and wing length in Drosophila can be calculated by looking at the number of recombinant offspring produced in a genetic cross. Since we know that the traits for eye color and wing size are X-linked, we need to account for the fact that males are hemizygous, meaning they only possess one allele for an X-linked trait, which in this case is white eye color (X^w) and miniature wings (m).
Given that a female with genotype X^wm+X^wm was mated to a male with genotype X^wmY, the recombinant offspring are those that have a combination of traits that are not found in either parent. These are the flies with white eyes and wild-type wings, and those with red eyes and miniature wings.
In this scenario, there are 230 flies with white eyes and wild-type wings and 240 flies with red eyes and miniature wings out of 1000 total progeny. The sum of recombinants is 230 + 240, which gives us 470 recombinant offspring. To find the genetic distance in map units, we take the number of recombinant offspring (470) and divide by the total number of offspring (1000), then multiply by 100 to convert to a percentage:
(470 / 1000) × 100 = 47%
This means the genes for eye color and wing length are 47 map units apart.
what is the difference between the biological meaning of adaptation and the common meaning of adaptation
Adaptation is a word that can exist as different contextual meaning.
The biological meaning of adaptation refers to how organisms are better able to fit into their surrounding environment ensuring survival and reproductive success.
While
the generalized meaning of adaptation has to do with our behavioural changes to enable us tolerate some particular conditions.
Learn more about adaptation: https://brainly.com/question/25846058
what are the components of a phospholipid
The components of a phospholipid are two hydrophobic fatty acid tails and a hydrophilic head consisting of a phosphate group attached to a glycerol molecule.
Phospholipids are essential molecules that form the basis of cellular membranes, displaying an amphiphilic characteristic. Each molecule has a distinctly structured head and tail. The head contains the hydrophilic (water-attracting) phosphate group (-PO4-3) and glycerol; this is where interaction with the aqueous environment occurs. Meanwhile, the tails consist of two fatty acids that are hydrophobic (water-repelling), preferring to avoid water. This unique structure facilitates the formation of a lipid bilayer in biological membranes, where the tails face inward, shielded from water, and the heads face the aqueous environment on either side of the membrane. Cellular membranes formed by phospholipid bilayers are critical as they maintain cellular integrity and control the movement of substances in and out of the cell. Modifications at the phosphate group, such as the addition of choline or serine, can further influence the properties and functions of the phospholipid.
If you were to examine the profile of a typical stream, you would probably find that the gradient is _____.
If you were to examine the profile of a typical stream, you would probably find that the gradient is steeper at the headwaters (the upper part of the stream).
What is the gradient of a stream?The gradient of a stream refers to the rate at which the stream bed slopes or descends over a given distance, usually measured in feet per mile or meters per kilometer. It represents the change in elevation of the stream over a horizontal distance and is an important factor that influences the flow and behavior of the stream.
If you were to examine the profile of a typical stream, you would probably find that the gradient is steeper at the headwaters (upper part of the stream) and gradually decreases as the stream approaches its mouth (lower part of the stream).
This is because the water at the headwaters has a higher potential energy due to gravity and is able to flow more quickly downhill, while the water at the mouth has a lower potential energy and flows more slowly.
Learn more about stream gradient, here:
https://brainly.com/question/14399421
#SPJ3
Which geographic features are associated with a divergent boundary?
Answer:
Tectonic plates.
Explanation:
At the divergent boundaries, two plates move away from each other and the space produced by this spacing is filled by a new magmatic crust material. Thus, the divergent limit is constructive, since it allows the expansion of the ocean floor and the consequent formation of a new lithosphere.
According to this concept, we can say that the geographical features that are associated with a divergent boundary are the tectonic plates.
15) Cara and Chuck were looking at pond water through a microscope. They saw this image. Cara wondered what it was. Chuck said it had to be a living thing because it was A) green. B) moving. C) made of cells. D) round throughout.
16) Your science teacher has asked the class to make a cell city model. Which building or business in the city could represent the mitochondria, and why? A) city dump - waste storage B) city hall - control center C) roads - transportation system D) power company - produces energy
17) Identify the structure that protects and gives support to this plant cell. A) vacuole B) cell wall C) cytoskeleton D) cell membrane
18) Which cell structure is the gatekeeper, controlling what goes in and out of the cell? A) c - nucleus B) e - vacuole C) a - cell membrane D) b - endoplasmic reticulum
19) Karina is looking at a group of cells under the microscope. The organism has many cells, each with a cell wall and green chloroplasts. It has a nucleus and membrane bound organelles. In which kingdom should this organism be classified? A) Animalia B) Fungi C) Plantae D) Protista
20) _______ is a jellylike substance in both the animal and the plant cell containing important chemicals and acts like a matrix for the cell organelles. A) Chloroplast B) Cytoplasm C) Mitochondria D) Vacuole
15. The correct answer is option C, that is, made up of cells. All the living things are made up of cells.
16. The correct answer is option D, as mitochondria are considered as the powerhouse of the cell.
17. The correct answer is option B, the prime function of the cell wall is to provide the cell strength, strength, and composition.
18. The correct answer is option C, the cell membrane works as a gatekeeper of the cell, it monitors the movement of components in and out of the cells and organelles. In this manner, it is selectively permeable to organic molecules and ions.
19. The correct answer is option C, the Kingdom Plantae comprises of species like trees, bushes, herbs, grasses, green algae, and others. They are characterized by the presence of cell wall and green chloroplasts.
20. The correct answer is option B, cytoplasm refers to the jelly-like fluid, which fills a cell. It comprises majorly of water and salt. It is present inside the cell membrane of all the kinds of cells and comprises all the cell components and organelles.
Genetics, botany, and zoology are all parts of what subjects?