Answer:
<h2>
A</h2>
Explanation:
Testosterone is only found in males and absent in female.
Testosterone is a sex hormone in males which helps in development in primary s organs, sex accessory organs and many other organs.
Testosterone causing growth of the larynx in males only because in females this hormone is absent so sexual dimorphism was developing over time in these species.
Due to increase in growth of the larynx in males, result as adult male humans generally have large larynx and deeper voices than do adult female humans.
Answer:
Frogs reproducesexually and when organisisms reproduce sexually there are benefits which include:
produces genetic variation in the offspring.
the species can adapt to new environments due to variation, which gives them a survival advantage.
a disease is less likely to affect all the individuals in a population.
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species , however, outweighs this disadvantage.
Answer:
Xᵇ Xᴮ : tortoiseshell female;
Xᵇ Xᵇ : orange female;
Xᴮ Y: black male;
Xᵇ Y: orange male.
Explanation:
The possible genotypes and phenotypes for coat color in cats is:
<u>Females</u>
- XᵇXᵇ: orange
- XᴮXᴮ: black
- XᴮXᵇ: tortoiseshell
<u>Males</u>
<u>Cross of an orange male and a tortoiseshell female</u>
XᵇY x XᴮXᵇ
The male produces the gametes Xᵇ and Y; the female produces the gametes Xᴮ and Xᵇ.
<u>The expected offspring resulting from the combination of those gametes is:</u>
- Xᵇ Xᴮ : tortoiseshell female
- Xᵇ Xᵇ : orange female
- Xᴮ Y: black male
- Xᵇ Y: orange male
Answer:
The extreme heats and drought meaning little rain.
Explanation:
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