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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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In what ways are the chemical reactions of photosynthesis and cellular respiration similar?.
Pavlova-9 [17]

Answer: Both produce energy.

Explanation: Both provide each other with the necessary ingredients for the process to take place: glucose and oxygen for cellular respiration, carbon dioxide and water for photosynthesis.

6 0
2 years ago
What types of cells have DNA? Where in the cell is it located
LuckyWell [14K]

Answer:

Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.

Explanation:

8 0
3 years ago
Read 2 more answers
Echinoderms _____. _____ Select one: a. have an exoskeleton of hard calcareous plates b. often use tube feet to move around in t
atroni [7]

Answer:

B. often use tube feet to move around in their environment

Explanation:

Tube feet are tiny tubular projections of echinoderms on the underside (oral side). They are a member of the echinoderm water vascular system.

Tubular feet are used for feeding, breathing and shifting. They are arranged around the sides, in grooves. They work by hydraulic pressure. They are used to transfer food in the centre to the oral mouth, and may stick to surfaces. Tube feet allow certain animals to stick and travel slowly to the ocean floor. for example starfish uses tube feet for the above functions.

Hence, the correct option is B.

4 0
3 years ago
What can you do with dna after you take it out of an organism.
wlad13 [49]

Answer:

You can look at the DNA under an electron microscope and analyze it

Explanation:

what else would you do with DNA eat it? Feed it to your dog?

5 0
3 years ago
The best classification system is that which most closely
Nataly_w [17]

Answer:

c.reflects evolutionary history.

Explanation:

The best classification system in biology is that that reflects evolutionary history, this is because more developed animals evolved from ancestors, this means that little modifications on the DNA happened over the course of million of years that created the animals that we know today, so this little differences would be relfected on a classification system.

6 0
3 years ago
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