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Rzqust [24]
3 years ago
6

How do mass extinctions affect the rate of evolutionary change?

Biology
1 answer:
ANEK [815]3 years ago
6 0

The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendant species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.

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Which areas in a secondary lymphoid organ allows intimate contact between blood and the lymphocytes?
tester [92]

Answer: White pulp of the spleen

Explanation:

The white pulp of the spleen is that region found in the spleen which appears white in color.

It appears whiter than the surrounding red pulp on the gross section which consitutes to about 25% of the whole splenic tissue.

This area has antigen presenting cells and dendritic cells and macrophages. Some of the cells there are known as metallophillic mcrophages which helps in keeping the body free from diseases.

5 0
3 years ago
In dna, one nucleotide monomer is linked to the next through _____. ( module 10.2)
Sergio [31]
In DNA Nucletide monomer are linked to the next through covalent bonds


Hope this helps!
4 0
3 years ago
According to the data above, humans exhibit a high chance of surviving into old age.
Rom4ik [11]

Based on the data provided, we can conclude that the graph in question corresponds to the K-selected theory in regards to the human species.

When considering the data of certain species and grouping them into categories such as extinct, endangered, or K/r-selected we take into account factors such as:

  • Population size
  • Behavior
  • Carrying capacity
  • Reproduction rates

and so on, then classify each species accordingly.

Species that are Extinct are no longer on the earth. This classification refers to species of the past and does not include humans as of yet. The endangered category is reserved for species whose population sizes are <u>at a critical low and are near </u><u>extinction</u>, which is also not the case for humans.

The K-selected and r-selected theories consider reproduction rates and carrying capacity as well when grouping species. Species that produce few offspring at a time are often found in this group. This category also refers to species whose offspring have a high chance of survival into maturity and whose population size is near the limit of the environment. All of this follows the data given and is the classification for the human species.

To learn more visit:

brainly.com/question/13046597?referrer=searchResults

3 0
2 years ago
In a savanna, gazelles, wildebeests, and warthogs eat grasses. Lions and cheetahs eat gazelles and wildebeests. Lions and wild d
Margarita [4]
Grasses are the producers. Gazelles, warthogs, and wildebeests are primary consumers. Lions and cheetahs would be the secondary consumers.
4 0
3 years ago
How is fur helpful for organisms living in cold environments?
garri49 [273]
Fur has a thick layer of protection to help protect..say a bear in this case. A polar bear's fur is helpful in the cold, to prevent the bear from freezing to death.


But since a polar bear eats fish and things that it's used to in Antarctica, it probably won't adapt as easily.

I hope I helped!
8 0
3 years ago
Read 2 more answers
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