What is the relationship between evolution and natural selection?

1 answer:

6 0

Natural Selection is the process of those who have not evolved over time to be picked off by either predators or the environment. Evolution is the result of a species being altered in some way to adapt to their new environment to survive.

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Cells of the nervous system which supports the neurons by producing myelin sheaths and

rodikova [14]

Answer:

Schwann cells :)

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2 years ago

Which of the following might be symptoms of a lesion to the right motor cortex?

Radda [10]

Answer:

loss of movement of the left leg

Explanation:

The main function of the brain motor cortex is the regulation of body movements. This area of brain controls the voluntary movements of the body.

Right half of the body controls the left side of body and left half of the body controls the right side o body. Any lesion in right motor cortex may cause the loss of movement of left leg.

Thus, the correct answer is option (A).

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3 years ago

Economic benefits of forest

omeli [17]

Forests play an important role in the economic development of a country. They provide several goods which serve as raw materials for many industries. Wood grown in forests serves as a source of energy for rural households.

Most of the world’s paper is made from wood and one rather reliable index to the degree of economic development of a country is its per capita consumption of paper. As an economy develops economically, paper is used as packaging material, in communications and in scores of other uses. No really satisfactory substitute for paper exists for many of its uses.

While it has long been recognized that forests play many roles in the economic development of a country in addition to providing wood fiber for many uses, the non-wood outputs of forests are coming increasingly to be recognized and valued everywhere in the world. Forests have watershed values especially in areas with fragile and easily eroded soils; tree cover may be highly valuable simply as protection to the watershed.

Forests are valued as a place for outdoor recreation. The kinds of forests most valuable for outdoor recreation are not always the same as the kinds most valuable for wood production and vice versa. The dense forest with trees closely spaced to take full advantage of the sunlight, moisture and fertility to grow wood, is often less attractive to the recreationist than a more open forest.

Forests are the home for many species of wildlife including mammals, reptiles and birds. Some of these forms of wildlife are clearly valuable to man. Ecologists have been much disturbed at the reduction in wildlife numbers, sometimes to the point of extinction, as tropical forests are cleared.

please mark as brainliest!!

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3 years ago

The ________ develops in the pregnant female as a source of nourishment and gas exchange for the developing fetus.

arsen [322]

The answer is d. Placenta

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3 years ago

While Maria's mom has small ears (alleles ee), her dad has large ears (alleles EE). What are the possible phenotypes Maria would

Svetach [21]

The only possible phenotype is large ears.

This is because using a punnet square reveals that each option has a dominant allele of large ears, leaving no room for the recessive trait of small ears.

Hope this helps!

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3 years ago