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Anni [7]
4 years ago
10

Plz i need help with this. Idk how to do it

Biology
1 answer:
OverLord2011 [107]4 years ago
4 0

It is 4. the reproductive cycles of males and females are regulated by hormones

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I need some helppp 40 points...
kherson [118]

Answer:

5: The phenotype for both parents is being tall.

6: 25%

7: 50%

8: 25%

Explanation:

5: We are shown that tall plants are dominant over short plants, and the genotypes of both parents are Tt (tall, short). This means that both parents will be tall.

6: The Punnet Square shows us that 1 out of 4 offspring are TT, 1/4 is 25%

7: The Punnet Square shows us that 2 out of 4 offspring are Tt, 2/4 is 50%

8: The Punnet Square shows us that 1 out of 4 offspring are tt, 1/4 is 25%

8 0
4 years ago
Perimenopause describes the time period before menopause, the end of a woman’s reproductive years. It often starts a few years b
Grace [21]
Irregular periods. 
Hot flashes and sleep problems. Hot flashes are common during perimenopause. The intensity, length and frequency vary. Sleep problems are often due to hot flashes or night sweats, but sometimes sleep becomes unpredictable even without them
.Mood changes. Mood swings, irritability or increased risk of depression may happen during perimenopause. The cause of these symptoms may be sleep disruption associated with hot flashes. Mood changes may also be caused by factors not related to the hormonal changes of perimenopause.
Vaginal and bladder problems. When estrogen levels diminish, vaginal tissues may lose lubrication and elasticity, making intercourse painful. Low estrogen may also make vagina vulnerable to urinary or vaginal infections. Loss of tissue tone may contribute to urinary incontinence.
Decreasing fertility. As ovulation becomes irregular, the ability to conceive decreases.
Changes in sexual function. During perimenopause, sexual arousal and desire may change.
Loss of bone.
changes in cholesterol level
7 0
4 years ago
Analyze the role of dna fingerprinting in criminal investigation.
nikitadnepr [17]

DNA/fingerprints are all unique, therefor it is easy to match a fingerprint to a person thus they use this mechanism in criminal investigations because only one person woul have matching DNA to the prints on the scene, and that is the criminal.

Hope this helps :)

8 0
4 years ago
Certain chest deformities prevent normal expansion of the chest. Explain why this makes ventilation difficult in terms of pressu
hram777 [196]
The lungs work by expanding and going back to their original size when you inhale and exhale. The rib cage also expands so the lungs can have more air inside and expand. Due to deformities, the rib cage might not expand and/or the diaphragm might not lower itself, which might lead to pressuring the lungs not to expand and having a lower volume of air inside. This leads to breathing difficulties.
3 0
3 years ago
How does sea foam form?
zepelin [54]

Answer- I think it is because of the organic matter and salt water that mix into sea foam. Hope this helps!

4 0
4 years ago
Read 2 more answers
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