Answer:
the answer should be A. Fission
Secondary succession is the ecological succession that occurs after the initial succession has been disrupted and some plants and animals still exist. It is usually faster than primary succession
To obtain oxygen.............
There's sexual reproduction and asexual reproduction. Sexual reproduction involves both male and female in order to reproduce, while asexual reproduction involves an organism reproducing on its own without the help of another partner.
Thyroid gland is the correct gland