Animals commonly called reptiles, amphibians, birds, and mammals are all tetrapods – a term that means "four feet." The transition from water to land is fascinating to scientists in part because it’s our history – the transition documents the evolution of tetrapods, and humans are tetrapods. Tetrapod for a clade. Which of the following is true of tetrapods?
a. Tetrapods are more complex than non-tetrapods.
b. Tetrapods are more evolved than non-tetrapods.
c. Tetrapods are more closely related to each other than to non-tetrapods.
d. All of the above

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

What in scientific term why the salty popcorn causes this thirst

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes