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Lady bird [3.3K]
2 years ago
14

Snake bite antivenin is an example of

Biology
2 answers:
SIZIF [17.4K]2 years ago
6 0

Answer:a

Explanation:

Neko [114]2 years ago
3 0

Answer:

It would have to be passive immunity

Explanation:

Because active immunity develops after being exposed to the pathogen and its not acquired either because its similar to active and it isn't inborn because that comes from your parents

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reactants are taken in from the environment by the plant,and products are formed inside the plant.

Explanation:

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Where does the sedimentary rock chalk form? from the precipitation of minerals in shallow marine environments by the lithificati
Katarina [22]

The correct answer is an accumulation of microorganisms in deep marine environments.

Chalk rock refers to a pure form of limestone produced in tropical and warm seas about 100 million years ago in the Cretaceous period. The microscopic marine algae known as coccoliths thrived in the ancient seas. Their shells were comprised of calcite. With the death of the algae, their bodies sunk to the floor of the sea and sediment of chalk got deposited.

Over many years layers of chalk sediment got deposited and resulted in compaction of loose sediment into solid chalk rock.

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3 years ago
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b d e

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Explanation:

Whatever lives there is going to need energy and water to survive. The atmospheric layer will protect the planet like ours protects Earth. Hope this helps! :)

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Scientists hypothesize that oxygen began to accumulate in Earth’s atmosphere after the appearance of living things with the abil
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