Question

Q20 Write the main characteristic features of menstrual
cycle?

Q21 Mention the changes that take place in the uterus if
it receives an unfertilsed egg from the fallopian tube?

Q22 Explain how the sex of an individual is determined?

Q23 Draw a neat diagram to show the location of various
endocrine glands in our body

Q24 What is adrenalin ? What is its funtion?

Q25 Why should we plan the diet of an adolescent with
great care?

Q26 Why should a teenager be highly careful about the
cleanliness of his/her body?

Please guys help me ​

Answer 1

Answer:

The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce. The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS

Answer 2

⛄⛄ANSW€R :-

Q20.

● The four phases of the menstrual cycle are menstruation, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS). Knowing when in the menstrual cycle a woman is most likely to conceive can increase the chance of pregnancy.

Q21.

● The fertilized egg stays in the fallopian tube for about 3 to 4 days. But within 24 hours of being fertilized, it starts dividing fast into many cells. It keeps dividing as it moves slowly through the fallopian tube to the uterus. Its next job is to attach to the lining of uterus

Q24

● Key actions of adrenaline include increasing the heart rate, increasing blood pressure, expanding the air passages of the lungs, enlarging the pupil in the eye (see photo), redistributing blood to the muscles and altering the body's metabolism, so as to maximise blood glucose levels (primarily for the brain).

Q25.

● It is more necessary for teenagers because the increased activity of sweat glands sometimes makes the body smelly. All parts of the body should be washed and cleaned everyday. If cleanliness is not maintained there are chances of catching bacterial infection