Answer:
D no part
Explanation:
The body only has eukaryotic cells!
You look under a microscope at an unknown organism and you observe 24 homologous pairs of chromosomes. What type of cell are
you observing and how do you know?
Answer:
Eukaryotic cell
Explanation:
In the given question, when the chromosomes were observed, the number of chromosomes was found to be 48 but are present in the homologous pairs that are 24 pairs are observed.
Since the chromosomes are observed as a homologous pair which is a characteristic feature of a eukaryotic cell. The prokaryotic cells just possess one chromosome which is circular in shape.
Since the observed cell possesses the chromosomes as homologous pairs, therefore the cell is a eukaryotic cell.
Why does Ocean City MD. have warmer winters than Sterling VA?
Final answer:
Ocean City, MD experiences warmer winters than Sterling, VA due to its proximity to the ocean, which moderates temperatures through the process of oceanality, while Sterling experiences more extreme temperature fluctuations due to continentality.
Explanation:
The reason Ocean City, MD has warmer winters than Sterling, VA can be attributed to the phenomenon known as oceanality, which is influenced by the proximity to the coast and the regulation of temperature by the ocean. In contrast, Sterling, VA experiences more continentality, which results in greater temperature fluctuations. The ocean impacts temperature on nearby coasts by warming the air in winter and cooling it in summer because water has a high heat capacity and changes temperature more slowly than land.
Oceans and large bodies of water like the Atlantic Ocean near Ocean City moderate temperature because they absorb heat during the warmer months and release it during the cooler months. This creates a milder climate with less extreme temperatures compared to inland areas. As Sterling, VA is located further inland, it lacks this moderating influence and thus experiences colder winters.
When a blacksmith is working with hot metal, what places does the thermal energy go?
Question 15 options:
The thermal energy in the hot part of the metal moves to the cold part of the metal.
The thermal energy is transferred to the anvil and hammer.
Heat escapes into the air through convection.
All of the above.
None of the above.
Answer:
The thermal energy is transferred to the anvil and hammer.
Explanation:
In metallurgical processes, part of the thermal energy present in the hot metal is transferred to the anvil and the hammer. This is because the anvil and the hammer have different temperature than the temperature of the hot metal. With that, part of the thermal energy of the metal will be transferred to the hammer and the anvil, in an attempt to balance the thermal energy in the 3 objects.
Final answer:
When a blacksmith is working with hot metal, the thermal energy can go to the cold part of the metal, to the tools, and to the air.
Explanation:
When a blacksmith is working with hot metal, the thermal energy can go to several places. First, the thermal energy in the hot part of the metal moves to the cold part of the metal through conduction. This happens because the atoms in the hot part of the metal vibrate more and transfer some of their energy to the neighboring atoms in the colder part. Second, the thermal energy can be transferred to the tools used by the blacksmith, such as the anvil and hammer, through conduction. Finally, some of the thermal energy can also escape into the air through convection, where the hot air rises and carries away some of the heat.
Why did mosquitoes develop resistance to DDT?
A. Because it was killing them so they had to do something!
B. The government reduced their use of DDT after the book Silent Spring and the mosquitoes used the time to develop defenses against DDT.
C. The ones which had a genetic variant that was tolerant of the DDT survived and reproduced.
D. The nuclear DNA mutated and some individual mosquitoes developed resistance.
Mosquitoes developed DDT resistance through natural selection, where mosquitoes with a genetic variation that allowed for DDT tolerance survived and reproduced, passing these advantageous genes to their offspring. Therefore, the correct answer is option C. The ones which had a genetic variant that was tolerant of the DDT survived and reproduced.
The development of DDT resistance in mosquitoes is a clear example of natural selection at work. The correct answer to why mosquitoes developed resistance to DDT is C. The process works as follows: when DDT was widely used, it killed off a large proportion of the mosquito population; however, within any population, there is genetic variation. During this selection process, only mosquitoes with a genetic variant tolerant of the insecticide survived and passed on their genes to the next generation. Over time, these resistant individuals became more prevalent. This explanation is rooted in biology, specifically genetics and evolution.
To elaborate, female mosquitoes did not purposely choose to mate with resistant male mosquitoes to ensure fit offspring. Resistance developed because of a natural genetic variation that provided some mosquitoes with a survival advantage in a DDT-rich environment. Similar resistance patterns have been observed in Plasmodium, the protozoan that causes malaria, which has become resistant to anti-malarial medicines due to over-prescription and subsequent selection pressures. The outcome of such adaptations is an increase in the proportion of individuals with the advantageous traits in a population.
Neeeeeeeeeedd helppppp
2) Take long showers. Taking long showers wastes water instead of saving it.
3) Water. Water is not metal.
Answer: For 2, taking long showers is the answer. For 3, B is the answer.
Explanation:
Most plants and animals require food and oxygen toi live. Plants and anmals primarily use the oxygen to convert their food into A. cells. B. carbon dioxide. C. blood. D. energy.
Answer:
Energy
Explanation:
Please help me I don’t understand
Answer:
The answer is A
Explanation:
What component of Earth's atmosphere exists entirely as a result of photosynthesis?
OOOO
oxygen gas
water vapor
nitrogen gas
carbon dioxide gas
Answer:
Oxygen gas
Explanation:
Photosynthesis is where carbon dioxide, water, and sunlight are turned into oxygen, and glucose (energy for the plant). The only gas released is oxygen.
Help me please!!!!!!
Answer:
proteins and carbohydrates
Explanation:
i just know
The piece of land where a river meets a sea is called a delta. Sediments, which are carried along with the river, are continuously deposited at the mouth of the river. Which of the following natural resources is most likely plentiful at deltas?
A.
metal ores
B.
petroleum
C.
fertile soil
D.
coal
Answer:
c
Explanation:
Which of these claims is true of Venus?
a
Venus has two moons.
b
On Venus, a day is longer than a year.
c
Venus is the fourth planet from the sun.
d
The atmosphere of Venus is capable of supporting life.
Answer:
B. On Venus, a day is longer than a year.
Explanation:
Answer:
B) on venus a day is longer than a year.
Explanation:
This i think is because its closer to the sun and has more exposure to the light thus resulting in longer days.
Provitamin A, also known as beta-carotene, is necessary for human health. People who do not make this substance suffer serious medical
problems. Which application of genetic technology has been the MOST promising for treating people who suffer from a deficiency of provitamin
A?
A
Developing transgenic bacteria that can break apart provitamin A
B. Developing gene therapy to eliminate the body's need for provitamin A
C. Developing GM foods that produce and store provitamin A
D. Altering the processes of transcription and translation used for provitamin A synthesis.
Answer: C
Explanation:
i just took a quiz and that was the correct answer
A solid rock is sitting on the ground. Which claim best describes the particles that make up the rock?
Answer:
vibrating, but not changing place
hope this helps
Answer:
Plz mark Brainliest
Explanation:
It is due to a low entropy level in the rock, and also the type of chemical bonds the rock has.
An example similar to this one would be diamond. It is made up of carbon bonds. But once you take a (real) diamond out of the ground, it very slowly, not visible to the human eye, yet surely is turning back into graphite. (another substance made by carbon bonds)
I hope this helped.
Which of the following steps of the water cycle is the only step that has to have living organisms in
order to happen?
A. Transpiration
B. Condensation C. Evaporation D. Preci
Answer:
A. Transpiration
Explanation:
Transpiration is the process of water evaporating from the leaves of plants through holes on the underside of the leaf.
Final answer:
In the water cycle, transpiration (Option A) is the only step that requires living organisms, as it involves water movement through plants and out to the atmosphere.
Explanation:
The step of the water cycle that requires living organisms to occur is transpiration.
This process involves plants absorbing water through their roots, which then moves up through the plant and eventually evaporates from the leaves into the atmosphere. Unlike condensation, evaporation, and precipitation, transpiration specifically involves the biological process of plants.
While condensation is the process of water vapor cooling to form liquid water droplets and precipitation is the water droplets falling from the atmosphere as rain, snow, sleet, or hail, these do not require living organisms to happen. Therefore, the correct answer to the question is A. Transpiration.
Which of the phrases from the paragraph is an example of a simile?
A. "Charlene fished beside her dad from their little rowboat."
watching the orange floater as it bobbed gently."
C the fish fighting as hard as a boxer in the ring"
D. "Suddenly, the floater disappeared beneath the wife
Answer:
I’m pretty sure its C. The fish fighting as hard as a boxer in the ring.
I hoped this helped :)
The phrase 'the fish fighting as hard as a boxer in the ring' is a simile, as it uses comparison between two different things using 'as' to emphasize the effort of the fish.
Explanation:
In this case the phrase that is an example of a simile from the paragraph provided is 'the fish fighting as hard as a boxer in the ring'. A simile is a figure of speech that makes a comparison between two unlike things using words like 'as' or 'like', and this phrase fits that definition. The phrase compares the struggle of a fish to the determined effort of a boxer fighting in a ring. Here, the fish's effort is emphasized through the comparison to a professional athlete. Therefore, looking out for such phrases can assist in identifying similes in text.
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What type of wave do ocean waves represent?
Surface Waves
Explanation:
A surface wave is a wave in which particles of the medium undergo a circular motion.
Answer: Surface Waves
Explanation:
What is the function of heart valves?
They return blood to the heart.
They force blood to flow out of the heart.
They regulate the heart rhythm.
They prevent blood from flowing backwards.
Answer: EDUCATED GUESS
Explanation:
They regulate the heart rhythm.
Heart valves prevent blood from flowing backwards, ensuring unidirectional flow that is essential for effective blood circulation throughout the body.
Explanation:The function of the heart valves is crucial for the cardiovascular system, as they prevent blood from flowing backwards by ensuring unidirectional flow through the heart. There are four valves in the heart: the tricuspid valve, the pulmonary valve, the mitral valve, and the aortic valve.
These valves open to allow blood to move forward and close to prevent it from leaking back into the chamber it came from. This action is vital as it maintains the efficiency and pressure necessary for blood to reach all parts of the body. The unidirectional flow is necessary for efficient circulation, ensuring that oxygen-rich blood reaches the systemic circulation and deoxygenated blood reaches the lungs for oxygenation.
how much DNA is located in an egg cell BEFORE fertilization?
a.) 100 percent (all of it)
b.) 50 percent (half of the DNA)
c.) none of it
Answer:
B
Explanation:
Gametes are haploid that contains 1 set of chromosomes.
To form a zygote, fertilisation occurs which causes the fusion of a sperm and an egg to form a diploid cell.
In each gamete, they contain 50 percent of the genetic material as compared to the zygote, fusing to form a zygote with 100 percent DNA after fertilisation.
Why was the continental drift theory rejected at the time of its proposal?
A) It did not explain the mechanism causing the movement of continents.
It did not explain the mechanism behind the discovery of continents.
It did not explain the mechanism behind the existence of continents.
D) It did not explain the mechanism causing the formation of continents
Answer: Option A.
It did not explain the mechanism causing the movement of continents.
Explanation:
The continental drift theory was proposed by A geophysicist Alfred wengener In 1912 but it was rejected by many scientists due to lack of motion mechanism. This theory explained why Continent shift position on the Earth surface. It was rejected because there was not scientific evidence to prove how continents move.
The continental drift theory proposed by Alfred Wegener was initially rejected because it did not provide a satisfactory explanation for the mechanism responsible for the movement of continents. It wasn't until the development of plate tectonics in the mid-20th century that the concept of moving continents became generally accepted.
Explanation:The continental drift theory was first proposed by Alfred Wegener in 1912. This theory suggested that the continents were once joined together in a single landmass and have since drifted apart. However, this proposal was largely rejected by the scientific community at the time.
One of the main reasons for its initial rejection was that Wegener could not provide a satisfactory explanation or mechanism to account for the movement of the continents. Although he proposed that the continents 'ploughed' through the ocean floor, this was deemed to be physically impossible with the understanding of physics at the time. Therefore, despite some matching geological and palaeontological evidences between different continents, the lack of a plausible mechanism for the drift led to the rejection of Wegener's theory.
It wasn’t until the mid-20th century with the development of plate tectonics, where scientists understood that the crust of the earth is broken into plates that move relative to each other, that the idea of continents moving became widely accepted.
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Jonathon tests four people that were present during a shooting incidence. He notes that there is gunshot residue on all but two of the people, the victim
and another person. What might he conclude about the person with no gunshot residue on his hands or clothing?
O A. The person was next to the shooter.
OB. The person was the shooter.
Oc.
The person was not the intended victim.
OD.
The person was not beside the shooter.
O E.
The person struggled with the shooter.
Final answer:
Given the absence of gunshot residue on one individual besides the victim at the scene, the most likely conclusion is that this person was not beside the shooter when the gun was fired. D. The person was not beside the shooter is correct.
Explanation:
When Jonathan discovers that gunshot residue is absent on one of the people at the shooting scene, it suggests a few possibilities, but with the options provided, one stands out. Given that the victim also didn't have gunshot residue, it's reasonable to infer that someone not involved with the gunfire itself would likely be free from residue. Therefore, the absence of residue on another individual could indicate that they were not in proximity to the shooter when the gun was discharged. Interpreting evidence requires careful thought and consideration of all potential scenarios.
The most fitting conclusion from the given options is that this person was not beside the shooter. This would be consistent with the expectation that someone standing close to the shooter might have residue on them from being in close vicinity to the fired weapon. Hence, the correct option is:
OD. The person was not beside the shooter.
ASAP!! I WILL MARK YOU BRAINLIEST!!! JUST THE ANSWER!!!
The key role of decomposers in an ecosystem is to make ______ available to plants.
a
energy
b
proteins
c
nutrients
d
carbohydrates
Answer:
C .nutrients
Explanation:
Answer: C Nutrients
With increased altitude how does the density of the atmosphere change?
remains the same
fluctuates
increases
decreases
Answer:
increases
Explanation:
This picture shows the United States Arctic National wildlife refuge, a large portion of Alaska that is protected from human activities that would affect living things in an area as well as non living resources that support living things. Even though oil and other resources in the area could be collected in the area and sold by humans to increase American wealth l, construction is prohibited in the area. The most complex level of organizational hierarchy in the Arctic National Wildlife Refuge that is preserved is...
A) the population of brown bears in the area
B) every species of fish in the area
C) every ecosystem in the area
D) the biosphere that includes Alaskan life
A. The population
Answer:C) every ecosystem in the area
Explanation:
i took the test
trust me
In the nitrogen cycle, which organisms are responsible for converting ammonia into nitrates that can be used by plants?
A) nitrogen-fixing cycle
B) decomposes
C)nitrifying bacteria
D) denitrifying bacteria
In the nitrogen cycle, Nitrifying bacteria is responsible for converting ammonia into nitrates that can be used by plants. So, the correct option is (C).
What is Nitrogen cycle?The nitrogen cycle is defined as the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates in atmospheric, terrestrial and marine ecosystems where nitrogen is fixed through both biological and physical processes.
The processes which participate in the cycling of nitrogen through the biosphere:
(1) Nitrogen fixation,
(2) Decay
(3) Nitrification
(4) Denitrification.
The nitrifying bacteria convert ammonia to nitrites or nitrates where the Ammonia, nitrites, and nitrates are all fixed nitrogen and can be absorbed by plants.
Thus, in the nitrogen cycle, Nitrifying bacteria is responsible for converting ammonia into nitrates that can be used by plants. So, the correct option is (C).
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Flagellates are microbes that have a rod-shaped flagellum that helps with their locomotion. Certain flagellates reside inside termites. These flagellates provide enzymes for the termites to digest cellulose, which helps them survive. In turn, the termites provide nourishment to these flagellates. Termites need cellulose for their survival, and flagellates obtain nutrition only from termites. Which statement can be true about the association between these microbes and termites?
A.
The flagellates share a facultative mutualistic association with the termites.
B.
The flagellates and termites share an obligate mutualistic association.
C.
The flagellates share an obligate parasitic association with the termites.
D.
The flagellates and termites share a commensal association.
E.
The flagellates and termites share a facultative parasitic association.
Answer:
B.
The flagellates and termites share an obligate mutualistic association
Explanation:
Organisms of same or different species tend to interact with one another in an ecosystem. The close interaction between two organisms is referred to as SYMBIOSIS. A type of symbiotic relationship is MUTUALISM, which is when both organisms benefits from the relationship.
However, mutualistic relationship can be of different types depending on how dependent the involved organisms are on each other. The example in this question illustrates OBLIGATE MUTUALISM, which is when the organisms involved in the mutualistic relationship depend on one another for survival. This is the case of the termites and the flaggelates where the termite depends on the flaggelate for enzymes that helps them digest cellulose while the flaggelates depend on termite for nourishment/food.
The termite will not survive if it doesn't get enzymes to digest its cellulose while the flaggelates will also not survive if they do not get nourished. Hence, the two organisms share an OBLIGATE MUTUALISTIC RELATIONSHIP.
Termites and flagellates have an obligate mutualistic relationship where the flagellates digest cellulose for the termites, and termites provide habitat and food for the flagellates.
Explanation:The association between termites and flagellates is described as an obligate mutualistic relationship. In this symbiosis, both parties are entirely dependent on each other to survive. The flagellates aid in the digestion of cellulose which is the primary food source of the termite. These protozoans possess bacteria that produce an enzyme called cellulase which is necessary for the breakdown of cellulose into sugars the termite can absorb. Conversely, the flagellates depend on the termites to provide them with a safe habitat and consistent food supply derived from the cellulose-rich wood that termites consume.
A body of air in the atmosphere that has mostly constant temperature, humidity, and pressure is…
A. Cold Front
B. Weather
C. Atmosphere
D. Warm front
E. Air Mass
Answer:
E. Air Mass
Explanation:
The definition of an air mass is "a body of air with horizontally uniform temperature, humidity, and pressure."
Answer:
E. Air Mass
Explanation:
20 POINTS AND BRAINLIEST QUICK I AM TIMED
What symbol would best represent an electric fan in an electric circuit?
The second symbol would best represent an electric fan in electric circuit.
Explanation:The first symbol represents an open circuit, the third is a resistor, and the fourth is a battery. That leaves us with only one option--the second one.
Answer:
c
Explanation:
When warm moist air over the oceans rises rapidly, condenses and forms clouds, which releases latent heat that then increases the force of the rising air a _________________ is formed. *
A) Hurricane
B) Tornado
C) Thunderstorm
is xeroderma pigmentosum dominant
Answer:
XP is autosomal recessive, with at least nine specific mutations able to result in the condition. Normally, the damage to DNA which occurs in skin cells from exposure to UV light is repaired by nucleotide excision repair. In people with xeroderma pigmentosum, this damage is not repaired.
Explanation:
Answer:
XP is autosomal recessive, with at least nine specific mutations able to result in the condition. Normally, the damage to DNA which occurs in skin cells from exposure to UV light is repaired by nucleotide excision repair. In people with xeroderma pigmentosum, this damage is not repaired.
Explanation:
The retinal cells responsible for night vision are:
photoreceptors
rods
fovea