Which type of change was seen in the ecosystems affected by the 1988 fires in Yellowstone park

1 answer:

4 0

Secondary Succession was seen in the ecosystem as a primary ecosystem community, after being destroyed was replaced by a 2nd one. so the answer is B, if i'm not mistaken.

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AZT is a reverse transcriptase inhibitor. How does this drug prevent the replication of a retrovirus

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Answer:

AZT is a thymidine analog

Explanation:

Azidothymidine (AZT) is an antiviral drug used for the treatment of the Human immunodeficiency virus infection (HIV/AIDS) by preventing the transmission of HIV from infected cells. AZT is capable of suppressing the activity of the enzyme reverse transcriptase of the retroviral HIV genome, which enables it to copy RNA into DNA. In infected cells, this double-stranded DNA is integrated into the host genome which is then instructed to produce identical HIV copies. AZT is a thymidine analog that is incorporated into DNA and thus interferes with DNA synthesis, thereby inhibiting cell proliferation.

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4 years ago

A skull with a long snout and large nose cavity could mean

Nadya [2.5K]

Answer:

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Explanation:

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3 years ago

A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the:

tatyana61 [14]

Answer:

A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the: SYNAPSE

Explanation:

A NEURON(or nerve cell) has 3 parts:

1. The dendrites(multiple)

2. The axon

3. The cell body

A SYNAPSE is an area where the dendrites of one neuron communicates with the axon of another neuron.

At the synapse, nerve impulses are transmitted from one neuron to the other. This is possible through substances called NEUROTRANSMITTERS. There is no direct contact between the axon of one neuron and dendrites of another neuron.