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ankoles [38]
3 years ago
11

Describe one problem that scientists must overcome to develop a vaccine for HIV

Biology
1 answer:
NikAS [45]3 years ago
5 0

Answer:

they must focus on it instead of focusing on useless information

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Scientists conduct investigations to answer questions. Before making a valid conclusion, scientists must-
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A- to collect relevant evidence
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When cells communicate by the signaling process, one cell produces a _________________BLANK that must be received by the _______
velikii [3]

Answer:

1. Signaling molecule

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Explanation:

Hormones, growth factors, neurotransmitters, etc. serve the function of signaling molecules for cells. These molecules are released by one cell and bind to the receptors present on/in the target cells to elicit the desired response. Thereby, the signaling molecules serve in cell-cell communication.

For example, insulin hormone synthesized and released from beta cells of pancreas binds to its cell surface receptors present on the surfaces of liver cells and muscle cells to stimulate the uptake of the glucose from the blood.  

Likewise, neurotransmitters released from the presynaptic neuron bind to receptors present on the membrane of postsynaptic neuron and serve to carry the nerve impulse to the postsynaptic neuron.  

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Which of the following statements is TRUE, regarding your DNA and the DNA of a banana? Both are made up of the same amino acids
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The correct answer is option D

Both are made up of the same nucleotide, but in a different sequence

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When managing a 28-year-old male patient who has been vomiting blood and has a fever, the emt considers that the patient might h
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The answer to that is (2)
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