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mash [69]
3 years ago
9

3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of e

nvironmental threats to Earth's biodiversity Refer to the Case Study.​
Biology
1 answer:
qaws [65]3 years ago
4 0

Explanation:

<h2><em><u>Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.</u></em></h2>
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Elastic fibers are important to muscle tissue since they resist excessive stretching and help muscle fibers spring back to its o
brilliants [131]

Answer:

True

Explanation:

Elastic fibers are composed of elastin, myofibrils and fibrillin. They are distributed <u>separately</u>, and therefore do not form bundles(they actually form a kind of mesh), like collagen fibers.

Elastic fibers are usually thin and long and can stretch up to 1.5x of their total length.

These fibers confer elasticity to the connective tissue. The mesh formed of elastic fibers easily yields to minimal tensions, returning to its original shape as soon as the deforming forces cease.

An example of the action of elastic fibers is when we pull the skin from our hands and release it, the elastic fibers are responsible for quickly returning the skin to its original shape.

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3 years ago
Suppose 10,000 units of energy are available at the level of the grasses. What is the total number of energy units available by
jok3333 [9.3K]

Answer:

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5 0
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Is mitosis division of the genetic information or the cell? plz explain
Inga [223]

Mitosis is the duplication of the cells. This takes places in the NUCLEUS of the dividing cell. The steps are as follows: PROPHASE, METAPHASE, ANAPHASE, and TELOPHASE. This forms two brand new nuclei, in which they both have the same number of chromosomes as the PARENT NUCLEUS. Hope this helps.

5 0
4 years ago
Herbicides are chemicals used to kill or inhibit the growth of unwanted plants and weeds. Many herbicides work by blocking elect
elena-s [515]

Explanation:

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5 0
3 years ago
Electrical wires are generally protected by a tube of plastic. a similar insulating function is performed in the nervous system
Allisa [31]

The myelin sheath is the protective layer, which is present in the outer layer of the neural cells. This myelin sheath prevents the loss of electrical impulses, which are being conducted in the neurons. This also act as an insulator between neuron and its external environment.

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Hence, the correct answer is myelin sheath.

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3 years ago
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