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Doss [256]
3 years ago
10

Which of the following statements is true about vaccines?

Biology
2 answers:
Ira Lisetskai [31]3 years ago
8 0
The answer is D vaccine work by teaching the body immune system to fight disease
LiRa [457]3 years ago
7 0
D) Vaccines work to fight the disease

Mark with crown!
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The species diversity of an evolutionary lineage will increase when more new member species originate than are lost to extinctio
lesantik [10]

Answer:

A. 2 speciation events and 5 extinctions

B. 5 speciation events and 1 extinction

Explanation:

As we can see from the diagram, there were only 2 ,aim speciation events for lineage A. The extinction events were 5 for the A lineage. Hence, as the extinction event was more rapid than the speciation event so lineage A contains only one species.

On the other hand, the diagram shows that for lineage B there were 5 speciation events and just 1 extinction event. Hence, the number of species in lineage B were more at the time zero as just one extinction had occurred.

5 0
3 years ago
How does carbon enter the atmosphere? options: Burning fossil fuels Cellular respiration Both A and B Neither A nor B
marta [7]

Answer:

Both A and B

Explanation:

Burning fossil fuels produces carbon dioxide.

Cellular respiration produces carbon dioxide.

Both produce carbon dioxide.

Both A and B.

3 0
3 years ago
What occurs during a temperature inversion
kherson [118]
Cold air will underlie warmer air at higher altitudes. :^)
Hope this helps!
5 0
3 years ago
What happens as a chemical bond forms between two identical atoms
GuDViN [60]
Energy is released when a chemical bond forms between two identical atoms
8 0
3 years ago
How would retaining extra cytoplasm enhance survival of a developing oocyte?
beks73 [17]

Answer:  An extra cytoplasm enhance survival of a developing oocyte in such a way because cytoplasm serves as a reservoir of lipids, polysaccharide and lipids for the developing embryo.The more the cytoplasm content, more will be the nutrients for the developing embryo. The cytoplasm forms the yolk and provides nourishment to the developing embryo. As we know that the developing embryo requires more nutrition and the main source of nutrition is cytoplasm because the sperm has no reservoir of its own to provide nutrition to embryo.

Thus, an extra cytoplasm enhance the rate of survival of a developing oocyte.




6 0
3 years ago
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