Your answer is B.
Sharks belong to a class of fish called "chondrichthyes" (means "cartilage fish") characterized by being jawed fish with skeletons made of cartilage instead of bone.
Sharks and fish with bones (osteichthyes) both have gill slits, scales and paired appendages. So, that would rule out the other answer choices.
Hope that helps!
Answer:
A) The Z chromosome trait is sex-linked. Theoretically, the lizards with the ZW(f)genotype would be more likely to express the recessive trait because it would only need one recessive allele. The lizards with the ZZ(m) genotype would need two recessive alleles (one from each parent) to express the trait.
Explanation:
The best answer is B. For example, someone could ask for the probability of a tornado tomorrow. It's not very likely but it is still a valid probability.
Answer:
The correct answer is - digestion.
Explanation:
In the human body, almost everybody organ has some system or physiological process that is highly sensitive to random pH changes. Digestion is one of the major physiological processes that also affected by pH fluctuations.
If there is a change in the pH, it will directly affect the process of digestion. The acid that is released by the stomach in the process of digestion is neutralized by the nervous system.
Thus, the correct answer is - digestion.