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lakkis [162]
2 years ago
9

Why are dead or weakened viruses used instead of normal viruses to create a vaccine?

Biology
2 answers:
Monica [59]2 years ago
8 0

because dead viruses aren't as effective as dead than "alive"

vodomira [7]2 years ago
5 0
I think its because vaccines are just to help your body learn how to fight off the virus, it’s not to actually give you the virus. Hope this helped!
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Which process best describes the predictable development of plant structure in an area over time?
miss Akunina [59]

The best description of predictable development of plant structure in an area over time is primary succession. The correct option is a.

<h3>What is succession?</h3>

Changes in the physical environment and the population of the species cause succession. There are two types of succession: primary and secondary succession.

Nudation, invasion, competition and coaction, reaction, and stabilization are the five stages of ecological succession. Autogenic succession is derived by biotic factor in an ecosystem.

Thus, the correct option is a. primary succession.

Learn more about succession

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2 years ago
What might happen to the Earth if human increase the amount of greenhouse gasses?
KATRIN_1 [288]

<u>Answer:</u>

Greenhouse gas refers to any gaseous compound in the atmosphere that can absorb infrared radiation, thereby trapping heat and keeping it in the atmosphere. By increasing the heat in the atmosphere, greenhouse gases are responsible for the greenhouse effect, which ultimately leads to global warming.

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3 years ago
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To treat a victim with abdominal injuries, position the victim in a an. _________ position. place a pillow or rolled blanket und
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Answer:

Explanation:

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