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9966 [12]
4 years ago
11

Eggs have species specific receptors on their outer surfaces to which sperm must attach if fertilization is to occur

Biology
1 answer:
mafiozo [28]4 years ago
6 0
The  question is; would a drug that binds irreversibly to these receptors be an effective contraceptive in mammals?, the answer is;Yes; because if the receptors are blocked the sperms will not be able to penetrate the zonal pellucida of the egg.  Contraceptives prevents pregnancy by interfering with the normal process of ovulation, fertilization, and implantation.
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An unknown disease or a well-known disease that suddenly becomes harder to control is called
Tom [10]

The best answer is B.

Infectious diseases whose incidence has increased  in the past two decades or threatens to increase in the near future have been said to be "emerging''. Such diseases include the following:

1. Old  infections emerging as a result of antimicrobial resistance in known agents or break down in public health measures.

2. New infections resulting from change or evolution of existing organisms.

3.  Known infections spreading to new geographical areas or population.

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6 0
3 years ago
Which statements describe the fat molecule in the image? The fat molecule is unsaturated. The fat molecule is a triglyceride. Th
andre [41]

Answer:

B,D, and E

Explanation:

Edgenuity :)

7 0
3 years ago
the zonation of flora and fauna along an altitudinal transect similar to that found along latitudinal transects is an expression
frutty [35]

The zonation of flora and fauna along an altitudinal transect similar to that found along latitudinal transects is an expression of the the life zone concept.

<h3>What is life zone concept?</h3>
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  • Altitudinal zonation is the term for the generally substantial dependence on elevation: the average temperature of an area falls as the height increases.
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Learn more about the life zone with the help of the given link:

brainly.com/question/895846

#SPJ4

6 0
2 years ago
Why do you think an ice cube feels cold when you hold it?
umka21 [38]

Answer:

If you are holding something cold you will feel cold.

Explanation:

4 0
3 years ago
What is relative fitness? the ability to survive and reproduce survival of the fittest the contribution an individual makes to t
nikdorinn [45]
The correct answer is <span>the contribution an individual makes to the gene pool of the next generation relative to the contribution of another individual.

Each individual in a population has an absolute fitness which is a measure of the successfulness of an individual in reproducing and leaving viable offspring. The relative fitness, on the other hand, is the relative fitness of the individual compared with another individual, usually the one with the highest fitness. </span>
8 0
3 years ago
Read 2 more answers
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