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Svetach [21]
3 years ago
15

The principle of common descent helps explain why

Biology
2 answers:
Olenka [21]3 years ago
8 0
C.  birds and reptiles share a number of inherited characteristics

Solnce55 [7]3 years ago
8 0

Answer:

The correct answer would be c. birds and reptiles share a number of inherited characteristics.

In evolutionary biology, the principle of common ancestors or descent explains how different groups of organisms share a common ancestor.

In other words, different groups of organisms are believed to evolve from a common ancestor.

The groups which share recent common ancestor share a number of common inherited characters.

The groups which share distant common ancestor share less common characters.

Thus, birds and reptiles share a number of characters as they have evolved from common descent or ancestor.


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Fermentation is an anaerobic biochemical pathway with truly one simple intent.
larisa86 [58]

Answer:

We are losing Earth's greatest biological treasures just as we are beginning to appreciate their true value. Rainforests once covered 14% of the earth's land surface; now they cover a mere 6% and experts estimate that the last remaining rainforests could be consumed in less than 40 years.

One and one-half acres of rainforest are lost every second with tragic consequences for both developing and industrial countries.

Rainforests are being destroyed because the value of rainforest land is perceived as only the value of its timber by short-sighted governments, multi-national logging companies, and land owners.

Nearly half of the world's species of plants, animals and microorganisms will be destroyed or severely threatened over the next quarter century due to rainforest deforestation.

Experts estimates that we are losing 137 plant, animal and insect species every single day due to rainforest deforestation. That equates to 50,000 species a year. As the rainforest species disappear, so do many possible cures for life-threatening diseases. Currently, 121 prescription drugs sold worldwide come from plant-derived sources. While 25% of Western pharmaceuticals are derived from rainforest ingredients, less that 1% of these tropical trees and plants have been tested by scientists.

Most rainforests are cleared by chainsaws, bulldozers and fires for its timber value and then are followed by farming and ranching operations, even by world giants like Mitsubishi Corporation, Georgia Pacific, Texaco and Unocal.

There were an estimated ten million Indians living in the Amazonian Rainforest five centuries ago. Today there are less than 200,000.

In Brazil alone, European colonists have destroyed more than 90 indigenous tribes since the 1900's. With them have gone centuries of accumulated knowledge of the medicinal value of rainforest species. As their homelands continue to be destroyed by deforestation, rainforest peoples are also disappearing.

Most medicine men and shamans remaining in the Rainforests today are 70 years old or more. Each time a rainforest medicine man dies, it is as if a library has burned down.

When a medicine man dies without passing his arts on to the next generation, the tribe and the world loses thousands of years of irreplaceable knowledge about medicinal plants.

Explanation:

3 0
3 years ago
1. Which biome is thought to have the greatest variety of living things? A. Tundra B. Marine C. Grassland D. Rainforest​
Aleksandr [31]

Answer:

B. Marine

Explanation:

There are still things we don't know the ocean

5 0
3 years ago
HELP ASAP! A rectangular photograph has an area of 13425 in² and a width of 1115 in. What is the length of the photograph? Enter
Elis [28]
Convert the mixed numbers into improper fractions and divide:
134 2/5 = 672/5
11 1/5 = 56/5
5/672 * 5/56 = <span>25/37632
the answer is </span>25/37632
4 0
3 years ago
Read 2 more answers
Protrusion of the eyes is called exophthalmos. How is it related to thyroid dysfunction?
vladimir2022 [97]
It is related to thyroid dysfunction because one main cause of exophthalmos is the thyroid eye disease. It is a condition were the tissues inside the eyeballs would swell due to too much thyroid activity. Exophthalmos is known as proptosis and is a term used for bulging eyeballs. This condition is an autoimmune type and one in every three people would have this condition. It is common for women in their 30s to 50s and for people who smoke. Other causes of this condition are bleeding at the back of the eyes, abnormal shape of the blood vessels and infection of the tissues in the eyes.<span />
4 0
4 years ago
A leech is an example of a _______.<br><br> prey<br> host<br> predator<br> parasite
Mila [183]
A leech is an example of a parasite
6 0
3 years ago
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