The diagram shows the embryo development of four vertebrates and suggests all of the following EXCEPT
A) common ancestry of vertebrates. (this answer is incorrected)
B) there are no similarities in the embryos of all four groups.
C) there are very few differences in the early development of any vertebrates.
D) common features (gills and segments) in the embryos of all vertebrates.

What is an endocrine function? (apex) a. esophageal glands release mucus into the esophagus b. salivary glands release saliva into mouth c. swear glands release sweat to the skin d. the pineal gland releases melatonin into the bloodstream

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

Why do mountaineers become breathless as they reach high altitudes