Homologous structures are: a) structures of animals that have the same appearances and functions but obviously no common ancestor. b) structures of animals that have different appearances and functions but different ancestors. c) structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor. d) structures of animals that appear to have evolved from different parts of their bodies.

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-

What causes darkening of the skin as melanin production increases

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above