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Lelechka [254]
3 years ago
13

Which the following statements typifies tropical rain forests? A. They are usually composed of at least ten distinct layers, or

stories, of vegetation. B. They are found in areas with high accumulations of organic material in the soil. C. They occur in areas with ancient, mineral-poor soil. D. They are known for being only moderately productive.
Biology
1 answer:
Novosadov [1.4K]3 years ago
6 0

        The right answer here is option C. They occur in areas with ancient, mineral-poor soil.

         An example of that is Amazonia in Brazil, it's one of the biggest forests on earth, and at the same time, we know its soil is poor, but at the same time it has some special materials that can be found there, such as niobium. This forest is, too, rainy almost all the time, and this many trees maintain the temperature of the whole earth stabilized. These kinds of forests can grow in this soil because of the burlap, that's organic materials from its own trees. It's consumed by them, and through this way, it survives and extends its size when humans don't use its resources too much.

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5. Explain how selection might be different if there were brown grasshoppers in
Semenov [28]

Answer:

Explanation:

Selection breeding is use to identify individual with good physical characteristics that can be used as parent in next generation. Brown, yellow, green grasshoppers are the distinct phenotypic characteristics of an individual hence selection will be individual base. Such that brown individual will be selected, green selected seperated and yellow will also selected. The organism that shows the best fits are often been selected depending on the objects of the selection

7 0
3 years ago
What is the purpose of ethical guidelines for handling of experimental subjects
Gemiola [76]

The purpose of ethical guidelines for handling of experimental subjects is to ensure the safety and well-being of all living creatures in an experiment.

Ethical guidelines include issues such as human rights, animal welfare, safety compliance with the law, conflicts of interest,  health standards..

Ethical guidelines are the norms for the acceptable and unacceptable behaviors of the researchers.


4 0
3 years ago
Read 2 more answers
In contrast to growing microtubules, shrinking microtubules ............. Group of answer choices have strong lateral interactio
Otrada [13]

Answer:

have curved protofilaments at their plus ends

Explanation:

Microtubules are polymers of tubulin proteins that function as the cytoskeleton of eukaryotic cells. Microtubules are dynamic structures that can grow and shrink at a rapid rate. During this process, tubulin subunits can associate and dissociate at the plus end of the protofilament. Tubulin subunits bind to two GTP molecules, one of which is hydrolyzed to GDP after assembly. When microtubules are unstable, protofilaments curl outwards because GDP-bound tubulin has a weak affinity (thereby curving it) and disassemble. The dynamic stability of microtubules is regulated by a feedback loop: when microtubules shrink, free tubulin concentration increases and microtubules start to grow. As microtubules grow, free tubulin concentration decreases and the rate of GTP-tubulin addition also decreases.

4 0
3 years ago
describe the cycling of matter and flow of energy among living and nonliving parts of the carbon cycle.
fgiga [73]

Answer:

Every ecosystem is made up of a variety of living and nonliving things. The living things within an ecosystem depend on each other to obtain their energy.

Explanation:

Hope this helps! :)

6 0
3 years ago
What measurement do we use to identify distance in space?
Brut [27]

Answer:

b. light speed

Explanation:

Light speed.

This is the distance that light travels in a year, aprox 9.46 trillion Kilometers.

8 0
2 years ago
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