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Aliun [14]
3 years ago
13

What is an example of active immunity?

Biology
1 answer:
sineoko [7]3 years ago
7 0

Answer: Active immunity can arise naturally, as when someone is exposed to a pathogen. For example, an individual who recovers from a first case of the measles is immune to further infection by the measles-causing virus, because the virus stimulates the immune system to produce antibodies that specifically recognize and neutralize the pathogen the next time it is encountered.

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A cell of the testes in men or ovaries in women duplicates its chromosomes and then divides twice during _____________, thus for
timurjin [86]

Answer:

Meiosis

Explanation:

Meiosis is a cell division that results from sexual reproduction where half the chromosome of each parent cell contribute its genetic make up resulting in four haploid, genetically different gamete, cells. These are sex cells that determines the gender of a baby.

As part of this process DNA replication first occurs, followed by the two cell divisions, meiosis I and meiosis II, giving rise to four haploid daughter cells different from their parent cells.

8 0
3 years ago
what happens to an ecosystem as biodiversity increase? are there impacts to human? economies or survival? explain​
Tpy6a [65]

Answer:

But certain stressors, most of them human-caused or human-influenced, threaten or reduce biodiversity. Because the creatures and plants in ecosystems are interdependent, the loss of even one species can have profound effects on the entire ecosystem, can affect other ecosystems and can endanger people as well.

8 0
4 years ago
Inner Fish video Notes for two pages if you have It
andrew11 [14]

Answer:

Nope don't have it, why?

Explanation:

6 0
3 years ago
Where was Darwin when he noted that there could be possible links between distinct but similar species?
dolphi86 [110]
He was at the Galapagos Islands with John Stevens Henslow <span />
7 0
3 years ago
What do deficiency of water cause? <br><br>Need some help in this ​
aleksandrvk [35]

Answer:

Dehydration

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deficiency of water in the body. Vomiting, diarrhea, excessive sweating, burns, kidney failure, and use of diuretics may cause dehydration

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