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2 years ago

B-cells and T-cells fight off the threat by producing _______. ............................

1 answer:

6 0

B-cells fight bacteria and viruses by making Y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells

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2. A cell in the leaf of a green plant performs both photosynthesis and cellular respiration, often at the same time. Which stat

quester [9]

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➷ The correct answer would be D. Products of one process are used as some of the reactants for the other processes.

As you may know, the formula for photosynthesis is:

carbon dioxide + water ==> oxygen + glucose

And the formula for respiration is:

oxygen + glucose ==> carbon dioxide + water

The reactants for one are the products for the other and vice versa. This is why it would be the correct option.

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4 0

3 years ago

Read 2 more answers

In which way will energy be used after it leaves the mitochondrion during cellular respiration

dem82 [27]

repairing parts of damaged tissue

6 0

3 years ago

Now consider a single base mutation in a codon for leucine that creates a codon for phenylalanine. A true reversion changes the

madam [21]

Answer:

options A, B, D and E

Explanation:

leucine codons include: UUA, UUG, CUU, CUC, CUA, CUG

phenylalanine codons include: UUU, UUC.

CUU

replace C with U to give

UUU phenylalanine codon

replace underlined with A

UUA leucine codon

CUC

replace underlined with U

UUC phenylalanine codon

replace underlined with A or G

UUA, UUG leucine codons

UUG

replace underlined with U

UUU phenylalanine codons

replace underlined with C

CUU leucine codon

UUA

replace underlined with U or C

UUU or UUC phenylalanine codons

replace U with C

CUU or CUC leucine codons

7 0

2 years ago

Why is the presence of only 2 adult female wolves of such concern to isle royale scientists?

Lesechka [4]

Since two females are unable to reproduce. Therefore, if only two females are still alive, the species will become extinct.

4 0

3 years ago

During an epileptic seizure, the triggering of convulsions would not directly involve the uncontrolled activity of neurons locat

Olin [163]

The answer is: " thalamus " .
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"During an epileptic seizure, the triggering of convulsions would not directly involve the uncontrolled activity of neurons located in the  thalamus  ."
___________________________________________________________

8 0

2 years ago