Question

Need help with this for my grandson.

Answer 1

1. PUBERTY (or initiation of adolescence) is caused due to increase in blood levels of androgens (in males) and ovarian/pituitary hormones like oestrogen/progesterone (in females).

Purpose of PUBERTY: Puberty is necessary for proper development of secondary sexual characters as well as proper development of the gonads. Puberty in simple terms refers to attainment of sexual maturity.

2. Meiosis > Sex cells > Fertilisation > Zygote > Mitosis.

Reason for choosing such an order:

• Meiosis is a type of cell division which produces haploid sex cells (like sperms and ova).

• The sex cells undergo fertilization and produce the diploid zygote.

• Now, The zygote undergoes mitosis to produce specific tissues and organs.

$\star$ Hope It Helps.

Answer 2

Explanation:

ANSWER ✍️

______________

1. 1. PUBERTY (or initiation of adolescence) is caused due to increase in blood levels of androgens (in males) and ovarian/pituitary hormones like oestrogen/progesterone (in females).

Purpose of PUBERTY: Puberty is necessary for proper development of secondary sexual characters as well as proper development of the gonads. Puberty in simple terms refers to attainment of sexual maturity.

1. 2. Meiosis > Sex cells > Fertilisation > Zygote > Mitosis.

Reason for choosing such an order:

Meiosis is a type of cell division which produces haploid sex cells (like sperms and ova).

The sex cells undergo fertilization and produce the diploid zygote.

Now, The zygote undergoes mitosis to produce specific tissues and organs.

hope this helps you