Answer:
a. is marked by limited changes in reproductive hormones
Explanation:
Answer:
Background extinction
Explanation:
The background extinction refers to the diminishing of the species at a fairly slow and constant rate. This extinction takes place because of the various environmental factors namely the changing climatic conditions, spreading of diseases, and destruction of habitat. It plays an important role in the natural process of evolution. This has been taking place continuously throughout the geological time and the species are undergoing continuous evolution over a specific period of time.
The hair-like structures are called cilia. Cilia are also found in other microorganisms.
The correct term is ejaculation
Ejaculation refers to the discharge of semen from the male reproductory tract, usually accompanied by orgasm. It is the final stage and natural objective of male sexual stimulation, and an essential component of natural conception.
