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olga_2 [115]
3 years ago
5

What gives sperms motility​

Biology
1 answer:
Mandarinka [93]3 years ago
7 0

Answer:

The tail of the sperm, the flagellum

Explanation:

We find cilia in the human body. They coat the epithelial cells of the upper respiratory tract and play a role in keeping dust particles, smog, and potentially harmful microorganisms from entering the lungs.

Their movements enable the movement of mucus or other substances across the surface of various epithelial cells. The cilia also cover parts of the male and female reproductive tract.  

Flagella are found in sperm, whose tail represents the flagellum in its structure. The body wall of the sponge, among others, contains cells with whips that create and maintain the flow of water through the body.

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Explain the role of a hypothesis in a scientific investigation.
k0ka [10]

Answer:

A hypothesis is a testable proposition

used to explain scientific phenomena. It

may be based on previous observations

(a sort of educated guess) or it may

simply be a hunch. Most scientific

hypotheses are combinations of

observation and intuition. The important

thing is that the hypothesis be testable.

If the hypothesis is disproved through

testing, then it is discarded and a new

hypothesis is proposed. If the hypothesis

stands up to rigorous testing, then our

faith in the hypothesis is increased.

This system of careful, rigorous, and

unbiased testing of a hypothesis is what

characterizes the scientific method.

Hope it helps!

4 0
2 years ago
What happens to light when it changes mediums
ryzh [129]

Answer:

Refraction is an effect that occurs when a light wave, incident at an angle away from the normal, passes a boundary from one medium into another in which there is a change in velocity of the light. ... The wavelength decreases as the light enters the medium and the light wave changes direction.

7 0
2 years ago
Which of these is a polysaccharide? A. Lactose. B. Glycogen. C. Sucrose.
geniusboy [140]

cellulose is a polysaccharide.

A significant class of biomolecules is polysaccharides. They are large chains of monosaccharide molecules that are linked together. These intricate biomacromolecules serve as a vital energy source for animal cells and are a crucial part of plant cells' structural makeup. The nature of the monosaccharides determines whether it is a homopolysaccharide or a heteropolysaccharide.

A branching polysaccharide is a type of carbohydrate that is different from a linear polysaccharide, which is a straight chain of monosaccharides.

Organisms have this energy in reserve. The molecules are hydrophobic because water cannot enter them because of the many hydrogen bonds present. They permit adjustments to the concentration gradient, which affects how the cells absorb nutrients and water.

Learn more about Polysaccharide here:

brainly.com/question/16580858

#SPJ4

8 0
1 year ago
Which structure is at work when the body deals with reflex actions?<br> meninges
Snowcat [4.5K]

Answer:

nervous system

Explanation:

The nervous system is also a fight-flight  system...meaning the reflexes are in work to either fight or fly away.Hope it helps:)

5 0
3 years ago
Among human populations the most fresh water is used for
iVinArrow [24]
Drinking and cooking is the correct answer 
7 0
3 years ago
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