Question

describe oestrus cycle and menstrual cycle.

Answer 1

Answer:

$\huge\sf\boxed\boxed{Answer}$

One difference is that animals that have estrous cycles resorb the endometrium if conception does not occur during that cycle. Animals that have menstrual cycles shed the endometrium through menstruation instead. Another difference is sexual activity. ... Humans have menstrual cycles rather than estrous cycles.

Answer 2

Menstrual Cycle:

1. It occurs in primates (monkeys, apes and human beings) only.

2. This cycle consists of menstrual phase, proliferative phase and the secretory phase.

3. Blood flows in the last few days of this cycle.

4. The broken endometrium is passed out during menstruation.

5. Sex urge is not increased during menstruation.

6. Female does not permit copulation during menstrual phase of the cycle.

Oestrous Cycle:

1. It occurs in non-primates such as cows, dogs, etc.

2. It consists of a short period of oestrous or heat (e.g., 12-24 hours in cow) followed by anoestrous or passive period.

3. Blood does into flow in this cycle.

4. The broken endometrium is reabsorbed.

5. Sex urge is increased during oestrous period.

6. Female permits copulation only during oestrous period.