BIOLOGY HIGH SCHOOL

Which is not an example of matter and energy cycling through living things? A. Trees growing B. Plants absorbing carbon dioxide? C. Salmon eating shrimp. D. A drop of water falling through the sky?

Answers

Answer 1
Answer:

The answer is D. In this case, there is no cycling of energy or matter. In the choice A, water and nutrients are absorbed from the soil to make up the tree. In choice B, the carbon dioxide from the atmosphere is used to make carbohydrate in the tree. In choice C, part of the biomass of the shrimp is converted into biomass and energy of the salmon.

Answer 2
Answer: D. A drop of water falling through the sky

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Which of the following represents a neural circuit that would be involved in the response to a stimulus?. A) sensory cell interneuron sensory neuron motor neuron muscle. B) sensory cell motor neuron interneuron sensory neuron muscle. C) sensory cell motor neuron interneuron sensory neuron muscle. D) sensory cell sensory neuron interneuron motor neuron muscle

Answers

I think it should look like the second one C) sensory cell motor neuron interneuron sensory neuron muscle.

The answer is SENSORY CELL -> SENSORY NEURON -> INTERNEURON -> MOTER NEURON-> MUSCLE.

Which consequence are scientists concerned could result from the use of genetically engineered growth hormones in dairy products? blindness cancer increased costs fewer organic options

Answers

The correct answer is cancer. Cancer is the consequence that scientists are concerned that is could possibly result from the use of genetically engineered growth hormones in dairy products. Cancer involves abnormal cell growth that is potentially be spreading in the body.

Answer:

Cancer.

Explanation:

Genetically engineered organism (GMOs) may be defined as the organisms whose genetic material has been modified by using the molecular techniques. Animals, plant, bacteria and viruses can be used as GMOs.

The genetically modified hormones in the dairy product is bovine. The bovine hormone helps in increasing the lactation and milk production in cattles. The bovine hormone is responsible for the differentiation and growth of the abnormal cells as well. The process of apoptosis is inhibited by the bovine. This might result in the formation of cancer.

Thus, the correct answer is option (2).

What describes a result of the greenhouse effect?

Answers

It is is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere. If a planet's atmosphere contains radiatively active gases (i.e., gases) the atmosphere will radiate energy in all directions.

How many blood moons have we had?

Answers

we have had eight red (blood) moons since the first documented one

While on a dig, a paleontologist finds two fossils. The more deeply buried one is an animal that appeared to have a few spiky projections resembling feathers. The second is an imprint of an animal that had fully formed feathers like those of modern birds. The paleontologist suspects the first animal was an ancestor of the second one. What would be the best thing for him to do next to test his hypothesis?Look for fossils of more advanced forms in the rock layers above the second fossil.
Look for more fossils of the two animals he has already found in the same two rock layers.
Look for other fossils of transitional forms in the rock layers between the two fossils.
Look for fossils of more primitive forms in the rock layers below the first fossil.

Answers

Answer:

Look for other fossils of transitional forms in the rock layers between the two fossils.

Explanation:

correct on my quiz
The second is an imprint of an animal that had fully formed feathers like those of modern birds. The paleontologist suspects the first animal was an ancestor of the second one. What would be the ... The more deeply buried one is an animal that appeared to have a few spiky projections resembling feathers.

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).
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