Can some please help...

Biology

2 answers:

Ksivusya [100]3 years ago

5 0

Yeah what the person above said

White raven [17]3 years ago

4 0

Answer: The male reproductive system has many roles, but two are: it produces, maintains, and transports sperm (male reproductive cells) and semen (the fluid which protects the sperm and allows it to swim to meet the female egg). (continued answer in explanation)

Explanation:

One of many structures in the male reproductive system is the prostate gland. The prostate gland's most necessary feature is that it aids in creating fluid that, together with sperm cells from the testicles and fluids from other glands, makes up semen. The prostate also has muscles which ensure that the semen is vigorously pushed into, and then expelled from the urethra during ejaculation. One hormone in the male reproductive system is LH, or luteinizing hormone. It is made by your pituitary gland (a small gland located beneath the brain). LH plays a very important role in the sexual development and functioning of males. LH also plays a key role in gonadal (testicles) function.

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Can someone help me with a biology related question? I'm offering good points!!!!! Help me out please.

miss Akunina [59]

First, write out all combinations for the parents:
SsBB:
SB
sB
SB
sB

ssBb:
sB
sb
sB
sb

So now that you know what to put on as the x and y for the Punnett Square, set it up:

 | SB | sB | SB | sB 
sB | SsBB | ssBB | SsBB | ssBB 
sb | SsBb | ssBb | SsBb | ssBb 
sB | SsBB | ssBB | SsBB | ssBB 
sb | SsBb | ssBb | SsBb | ssBb 

Now, listing each possible genotype and the number of times they show up in the square:
SSBB
0 times
SSBb/SSbB
0 times
SSbb
0 times
SsBB/sSBB
4 times
SsBb/SsbB/sSBb/sSbB/
4 times
Ssbb/sSbb
0 times
ssBB
4 times
ssBb/ssbB
4 times
ssbb
0 times

Since there are only 4 genotypes are possible, set up ratios of those four:

SsBB:
4 times/16 total = .25 = 25%

SsBb:
4 times/16 total = .25 = 25%

ssBB:
4 times/16 total = .25 = 25%

ssBb:
4 times/16 total = .25 = 25%

This means that the genotypes have a 25% : 25% : 25% : 25% likelihood.

Now, let's figure out the phenotypes of the 4 genotypes:
SsBB:
Ss = dominant
BB = dominant

SsBb:
Ss = dominant
BB = dominant

ssBB:
ss = recessive
BB = dominant

ssBb:
ss = recessive
Bb = dominant

So we have 2/4 that are S-dominant B-dominant and 2/4 that are S-recessive B-dominant.
This means that the phenotypes are:
2/4 = 50% Thin stripes with black eyes, and
2/4 = 50% Thin stripes with gray eyes.

I hope this helped you out :)

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Answer:

Carbohydrate digestion starts in the mouth and protein digestion starts in the stomach.

Explanation:

The salivary glands in the mouth produce saliva which contains enzymes that breaks down carbohydrates into sugars.

The digestive glands in the stomach lining also produce enzymes that break down proteins into amino acids that your body needs to make proteins.

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