Because the cell is considered an organelle which is a biological mechanism which consists of different parts, whereas a molecules is a single part and not a mechanism.
Answer:
leukemia is cancer of body's blood forming tissue, including the bone marrow and lymphatic system.
its symptoms is fever and chills.
hope it helps.
Answer:
DNA is in chromosomes in the nuclear envelope
Explanation:
Human reproduction<span> takes place as internal fertilisation by sexual intercourse. During this </span>process<span>, the male inserts his penis, which needs to be erect, into the female's vagina, and then either partner initiates rhythmic pelvic thrusts until the male ejaculates semen, which contains sperm, into the vaginal canal.</span>