Answer ; A.) Aquatic Animals .
Answer: c (HIV)
Explanation: Skin cancer, heart disease, and diabetes cannot be passed down unless it's hereditary though HIV being a sexually transmitted disease should be reported for that reason.
Answer:
A phenomenon of polarization and depolarization through which the abnormal acticity of a fibre spreads through a nerve.
Explanation:
Yeah it's possible. Even though both parents have round jaws... that may be the result of a dominant trait overpowering the recessive trait. As long as both parents have the recessive gene (in other words they're heterozygous traits) then there is a possibility for a child to be born with a square jaw.
Sea anemone's stomach serves as a "circulatory system" because it is a <span> gastrovacular system.</span>