BIOLOGY HIGH SCHOOL

Deep sea corals can be hundreds or thousands of years old true or false ?

Answers

Answer 1
Answer:

The given statement is True.

Sea corals are found deep inside the sea and oceans. They can survive in the shallow water. Deep sea corals can be found in groups or else can be found individually in water. They belong to phylum cnidaria and they live for thousands of years. They are found deep inside and if not disturbed in their habitat they can live long.
Answer 2
Answer: Deep water corals can be thousands of years old, so that's true.

Related Questions

Formulate a question that could be answered observing chromosomes of different species of animals
A vaccinea. can be harmful because it contains pathogens such as viruses. b. contains a changed pathogen, so the pathogen is no longer harmful. c. provokes a response from the viral immune system. d. all of the above
Which mutation would be most beneficial to an elephant and its descendents?A. a mutation of the hemoglobin allowing better oxygen-carrying capacity B. a mutation of the tail fur so it becomes course and thick C. a mutation of the skin color resulting in an albino (white) elephant D. a mutation of the tusk size and length resulting in smaller and shorter tusks
Trace the path of an egg cell by filling in the blanks. After the egg breaks through the ovarian wall, it travels into the _____, which overlies each ovary. From there, it reaches the _____, or womb. If the egg is fertilized by a sperm cell, it is implanted in the _____. uterus; ovary; fallopian tube ovary; fallopian tube; uterus fallopian tube; uterus; endometrium endometrium; uterus; fallopian tube
Photosynthesis continues to increase with temperature.true true within limits not true

Free palmitate is activated to its coenzyme A derivative (palmitoyl-CoA) in the cytosol before it can be oxidized in the mitochondrion. If palmitate and [14C]coenzyme A are added to a liver homogenate, palmitoyl-CoA isolated from the cytosolic fraction is radioactive, but that isolated from the mitochondrial fraction is not. Explain.

Answers

Answer:

The cytosolic and mitochondrial pools of CoA are  kept separate, and no radioactive CoA from the cytosolic pool enters the mitochondrion.

Explanation:

  • Fatty acyl group condensed with CoA in the cytosol are first transferred to carnitine and in this process, CoA is released.
  • After this, it is transported into the mitochondrion, where it is again condensed with CoA.
  • In this way, the cytosolic and mitochondrial pools of CoA are kept separate, and due to this reason, no radioactive CoA from the cytosolic pool enters the mitochondrion.
  • Therefore, according to the given question, the C14 CoA that is added into the liver homogenate along with palmitate shows cytosolic radioactive fraction but not mitochondrial as in the mitochondria a different CoA joins palmitate and not the one containing C14.

A portion of grass in a prairie ecosystem was destroyed by wildfire. What will most likely happen to the population of bison that feed on the grass?

Answers

The answer is: the population of bison that feed on the grass will decrease its number.

If a food resource is decreased, it is expected that the population of bisons that feed on that food will decrease, too. It is hard to expect from population to extinct since it is said that only a portion of grass was destroyed. So, the resources will be reduced, but there would still be enough food for the population to survive.  

Answer:

Bison that feed on the grass will decrease.

Explanation:

Telomerase Indicate whether each of the following statements about telomerase is true or false. 1. With each cell division, chromosomes gradually shorten in the absence of telomerase activity. TrueFalse 2. During embryonic and childhood development in humans, telomerase activity is relatively low compared to the level of activity in most somatic cells of an adult. TrueFalse 3. Cells that divide frequently tend to have relatively low levels of telomerase. TrueFalse 4. The activity of telomerase in most mature somatic cells is kept high by increasing the expression of the gene encoding this enzyme. TrueFalse 5. Mice with low telomerase activity appear to be normal for up to six generations, but they show steadily decreasing telomere length that eventually leads to nonviable offspring. TrueFalse 6. When telomerase is added to cells grown in culture, their lifespan decreases relative to controls that have no telomerase added. TrueFalse 7. Cancer cells generally have high levels of telomerase activity, which allows them to divide indefinitely without the chromosomes getting shorter and shorter. TrueFalse

Answers

Here are the answer for each item.
1. With each cell division, chromosomes gradually shorten in the absence of telomerase activity (FALSE)2. During embryonic and childhood development in humans, telomerase activity is relatively low compared to the level of activity in most somatic cells of an adult. (FALSE)
3. Cells that divide frequently tend to have relatively low levels of telomerase.(FALSE).
4. The activity of telomerase in most mature somatic cells is kept high by increasing the expression of the gene encoding this enzyme. (FALSE)
5. Mice with low telomerase activity appear to be normal for up to six generations, but they show steadily decreasing telomere length that eventually leads to nonviable offspring. (FALSE)
6. When telomerase is added to cells grown in culture, their lifespan decreases relative to controls that have no telomerase added. (FALSE)
7. Cancer cells generally have high levels of telomerase activity, which allows them to divide indefinitely without the chromosomes getting shorter and shorter. (TRUE).

Which is a logical predator-prey relationship?

Answers

Predator and prey are both dependent on each other. The absence of one organism will give the other a hard time to leave. Prey is the food of predator the more prey the more food for the predator. When the predator dies the decomposed body will give the prey energy to grow and share its nutrient to its predator and prey to the other

A moray eel eats a fish swimming by

A polar bear catches a seal for dinner

In the United States, donations of tissue and organs are regulated by the federal government, and the National Organ Transplant Act makes it illegal to buy or sell tissues or organs. In 2009, a group of cancer patients filed a lawsuit to allow the purchase of bone marrow to cure their diseases. The court legalized the purchase of bone marrow and set the price at three thousand dollars. Donors can now be compensated for bone marrow donations. Which of the following is a potential ethical concern that may result from this ruling?

Answers

A potential ethical concern is that it may create a system where wealthier individuals have easier access to life-saving treatments.

Inequity in Access: Paying for bone marrow could create a system where only those who can afford the cost gain access to life-saving treatments. This introduces a significant ethical issue related to healthcare disparity. It may disadvantage individuals from lower socioeconomic backgrounds who cannot afford the price, potentially leading to unequal healthcare access.

Commodification of the Human Body: Treating a part of the human body as a commodity for sale raises ethical questions about the commercialization of human tissues and organs.

It blurs the lines between altruistic donation and profit-driven transactions, which many find ethically problematic.

Impact on Voluntary Donations: Offering compensation for bone marrow donation may discourage voluntary, altruistic donations from individuals motivated by the desire to save lives. It could alter the culture of donation by introducing financial incentives.

Safety and Quality Concerns: The introduction of financial incentives could impact the safety and quality of donated bone marrow. Donors may be less motivated to disclose health risks, potentially compromising the health and safety of both donors and recipients.

Impact on the Donor Pool: If compensation for bone marrow donation becomes widespread, it may lead to changes in the donor pool, potentially affecting the diversity of donors and the availability of compatible donors for recipients.

For such a more question on  potential                                                                                                                                                                        

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Patients who cannot afford to purchase bone marrow will have to wait for voluntary donors.

How does earth science overlap with life science

Answers

Earth science involves the study of systems that may include living organisms
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Which of the following is the most likely cause of succession in ecosystems?a. arrival of new species b. rain c. loss of an animal species d. wildfires
Which of the following is true of Clydesdale and Thoroughbred horses? A.They are the same species and have different traits. B.They are different species and have the same traits. C.They are different species and have different traits. D.They are the same species and have the same traits.