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Bezzdna [24]
2 years ago
13

Which type of immunity is long lasting and why?

Biology
1 answer:
slega [8]2 years ago
7 0
You are likely referring to active immunity that can come from naturally acquiring the disease or vaccines. Both have T cells that fight pathogens and more antibodies are created to recognize viruses and the like and neutralize them. B cells can make more antibodies. There is a lot more detail to this question but hope it helps. Have a good day.
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Help me out fast please hurry​
Kisachek [45]

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3 years ago
Can you tell from this tree whether a C at position 15 evolved before or after a T at position 15? Explain your answer
Ratling [72]

The evolutionary tree is not observed here but it is possible to answer this question by observing which nucleotide is found in the root of the node. It indicates the first substitution.

<h3>What is an evolutionary tree?</h3>

A phylogenetic evolutionary tree is a diagram used to show the evolution of a given taxonomic group (for example, a group of species).

It is possible to trace the evolution of a given taxon by tracing the nucleotide substitution observed from a common ancestor.

In an evolutionary tree, the root of the node is represented by the common ancestor and therefore the presence of a particular nucleotide (either T or C) in that position can be considered as the ancestral character.

Learn more about evolutionary trees here:

brainly.com/question/2189834

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2 years ago
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SVEN [57.7K]

Answer:

gravaity

Explanation:

7 0
3 years ago
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What kind of symbiotic relationship is showm between Dori and Marlin
OlgaM077 [116]
<span>The kind of symbiotic relationship between Dori and Marlin is mutualism. This kind of relationship is where two different organisms exist together and they benefit one another. Some other examples include pollination. Lastly, some of these interaction play a key role in terrestrial ecosystems. </span>
8 0
3 years ago
Pls help, it’s 9th grade.
lara [203]

Answer:

its either C or D, im not sure bc im in 6th

Explanation:

8 0
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