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faust18 [17]
2 years ago
5

HELP ASAP

Biology
1 answer:
myrzilka [38]2 years ago
7 0

Answer:

its a and b for this anwser

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Please help due today!!<br> Brainliest given !!
Misha Larkins [42]

Answer:

The theory of evolution first formulated in Darwin's book is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits that allow them to better adapt to its environment, survive and have more offspring.

Ernst Mayr divided Darwin's theory into 5 unique parts.

Ernst Mayr divided Darwin's theory into 5 unique parts.Evolution as such

Along with Buffon and Lamarck, Darwin supported the ability of species to change over time.

Common Descent

Darwin felt that all of the diversity of life on earth emerged out of the evolution from one or a few common ancestors.

Gradualism

While Lamarck felt that species-wide change could take place within the span of a few generations, Darwin felt evolution was a much slower process, taking place in innumerable small steps.

Population Speciation

This portion of Darwin's theory states that within a population, change in a species occurs as the balance of hereditary characteristics shifts across that population. This differs from Lamarck's idea that each individual in the population must undergo the same change. According to Lamarck, all giraffes living under tall trees would develop long necks. According to Darwin, some would randomly be born with long necks, this hereditary trait would gradually spread throughout the population.

Natural selection

Natural selection is often called the most unique part of Darwin's theory. Competition had been thought of as a reason that a given species might succeed or go extinct, but Darwin extended the understanding to change within a species. To continue the example of giraffes: when a giraffe is born with a longer neck than its fellows, it gains an advantage because it is able to reach more food. The long-neck giraffe is therefore stronger, lives longer, and more likely to have offspring. These offspring are born with the same long neck as their parent, though some might have even longer necks.

Returning to the example in the figure, in the first generation the application of the pesticide causes the death of most of the non-resistant insects: only those resistant to the pesticide survive. These insects reproduce and maintain their resistence so that the second generation will be more resistant than the first. So we have Natural selection, speciation, gradualism and evolution in act all together.

5 0
2 years ago
The collection of animals and plants in the white mountains national forest is an example of
Anon25 [30]
Tundra i think it is tundra
6 0
3 years ago
Electrons are located only in specific shells around the nucleus of the atom true false
tresset_1 [31]
Electrons are only located in specific shells or orbitals that surround the nucleus of an atom. Therefore, I believe that your answer would be true. Hope it helped some! 
7 0
3 years ago
Read 2 more answers
Question 5
Andreas93 [3]

Answer:

  1. An entire rainforest.
  2. The elk overgrazed.
  3. Climate, wildlife, and vegetation
  4. They represent large geo
  5. Marine

7 0
3 years ago
All of the chemical reactions within an organism is known as_____.
kow [346]
I think it's Metabolism. 
6 0
3 years ago
Read 2 more answers
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