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MA_775_DIABLO [31]
3 years ago
14

In earth's history there has(have) been ____ major extinction event(s) leading to the loss of 50% or more of the species present

, not counting the current mass extinction.
Biology
1 answer:
Vsevolod [243]3 years ago
3 0
There have been 5 Mass Extinctions throughout Earth's history.
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A phylogenetic tree based on morphology can be constructed using the presence or lack of characteristics. In this illustration, all aliens except the outgroup possess a spring tail, all aliens possess a fourth eye, two aliens possess two tails, and one alien has a grasping hand. The evolutionary relationships between these organisms can be hypothesized using these traits.

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  • We can determine whether the following traits are present in the remaining aliens by using the group of aliens with the tail stalk as our test group.
  • Out group: a group that is maintained apart from the clade but is yet connected to it.
  • If we provide these aliens alphabets for ease of understanding, then aliens will be like in order.
  • We can use the group of aliens with the tail stalk as our test group to see if the following characteristics are present in the remaining aliens.
  • A group that is kept separate from the clade while yet being affiliated with it is known as an out group.
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10 months ago
What are local problems that the endangerment of honeybees causes?
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The cellular process that breaks down glucose to produce energy is
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or cellular respiration

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Explain how is mRNA involved in making proteins
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MRNA is basically what the information goes through to make into proteins! It's a very important part of translation 
 
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