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tigry1 [53]
2 years ago
9

How does the human immune system initially respond to a pathogen?

Biology
1 answer:
Lapatulllka [165]2 years ago
6 0

Answer:The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen.

Explanation:

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HELPPPP PLEASE THE THING IS 53 POINTS
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Answer:

B. Erosion

Explanation:

I think

3 0
3 years ago
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6. Circle the domain that describes each property.
Iteru [2.4K]

Answer:

archaea

Explanation:

i think cause they have its cells

4 0
3 years ago
Please Help! What molecules need to travel through ATP synthase to help it create ATP?
Effectus [21]

Answer:

The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.

Explanation:

That's the answer but not all of it just pick out the actual answer.

6 0
3 years ago
9. In guinea pigs, rough coat is dominant (R) to smooth coat (r) and black coat (B) is dominant to white coat (b). A rough black
lisabon 2012 [21]

Answer:

the genotype of the parent guinea pigs are as follows:

RrBb (rough, black) and Rrbb (rough, white)

Explanation:

Since the phenotype of smooth coat is present in the offspring, the parent genotype cannot have RR alleles for their coat. Similarly, the rough, black parent cannot have BB alleles in its genotype because that will not yield a white coat color in its offspring.

After making the dihybdrid cross, the probability obtained for each phenotype is given below:

rough black: \frac{3}{8}

rough white: \frac{3}{8}

smooth black: \frac{1}{8}

smooth white: \frac{1}{8}

Hope that answers the question, have a great day!

3 0
3 years ago
Explain how an organism's ability to survive and reproduce can affect the entire population
inn [45]

Answer:

The organism will pass on the traits to their offspring. If the offspring also has an increased chance of survival it will have a higher chance of passing on the traits. Over a long period of time the entire population can inherit this trait.

Explanation:

According to the theory of natural selection organisms with beneficial traits are more likely to survive to the reproductive stage and pass on the beneficial gene to their offspring. <em>Natural selection selects beneficial traits.</em>

4 0
3 years ago
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