What is the 1st step of virus infection?

2 answers:

7 0

Shannon is correct. I think of it as a microscopic spider. Imagine you touch something at Walmart and get your hands infected you wipe your nose with your hands. The virus enters the nose or wherever you let it go to. It crawls into one cells(now host cell) it injects genetic material of the virus into the host cell, the host cells the explodes and the micro-microscopic particles spread onto more and more cells and break those. While your immune system tries to defend you against them, sometime your immune system wins and you don’t get sick but sometime is looses and that is how we get sick.

lana66690 [7]3 years ago

6 0

Answer:

first step of the virus is to find a host and attaches itself to the host, goes into and attacks the body

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Most of the body's calcium is found in ________.

atroni [7]

Answer:

Bone.

Explanation:

Calcium is one of the important element present in the body. Calcium plays an important role in the muscle contraction. The calcium ions also acts as a signalling molecule during cell signalling.

The calcium is present in our extracellular fluids, bones, and teeth. The major constituent of calcium is present in the bone. The bone consists of around 90% body;s calcium.

Thus, the correct answer is option (b).

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3 years ago

Which of the following have been linked to the dramatic global decline of amphibian populations? Select one: a. drainage of wetl

charle [14.2K]

<h2>The correct answer is: e.</h2>

Explanation:

Decline in the global population of amphibians is due to multiple reasons which include:

A moist ecosystem is necessary for amphibians especially for the purpose of their reproduction. The drainage of the wetlands deprives them of their habitat.
Pollutants adversely affects the survival of the gametes, tadpoles or the adult amphibians by acting as toxic agents and inhibiting their normal metabolic function.
Infectious diseases often cause their death resulting their population to decline.
Global climate warming affects their normal metabolic growth and development and hence causes their population to decline.

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3 years ago

Abiotic factors one of the many components of an ecosystem . Abiotic factors include, rocks,water, and sunlight . One way that a

Alborosie

Answer:

An ecosystem is biotic, not abiotic.

Explanation:

First, an ecosystem is a biological community of interacting organisms and their physical environment. Second biotic factors are nonliving things whereas biotic factors are living things in an ecosystem you have your producers or plants which then will be consumed by the primary consumers. With the primary consumers feeding the next group of consumers and then the next and then after they die they fertilize the ground allowing the producers to grow as it completes the circle of life.

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Which of the following are greenhouse gases? oxygen water vapor carbon dioxide nitrous oxide methane

solong [7]

I know carbon dioxide is, I don’t think oxygen and water vapour are. I don’t know the others, sorry

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3 years ago

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Answer:

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