here is the answer of this qquestion
Answer: Growing a beard in males is an example of a sex-limited trait.
Answer:
yes it helps controll the fishes depth
Explanation:
Because they create their own food so they capture sunlinght to produce sugars
Scientific Theory change but not thrown away because scientist
continue looking for possibilities and exact proportion to prove such theory,
though it is change because they always conducted hypnosis in every theory and
once it proves something different they conduct another hypothesis for more
actual evidence.
