The theory says that the big bang produced the chemical elements hydrogen and helium. what evidence supports this? you find an abundance of both hydrogen and helium in all matter.

a. you find an abundance of both hydrogen and helium in all matter.

b. the composition of stars is mostly hydrogen.

c. astronomers found primordial gases with the expected ratio of helium to hydrogen.

d. primordial hydrogen gas was found and there is an abundance of both of these elements.

Which of the following is the function of the nociceptors? a. detecting odors in the nose b. detecting painful stimuli c. detecting central body temperature d. detecting touch and pressure

Body temperature is tightly regulated in mammals for example when external temperatures drop too much the body of a mammal response by in order to it's core temperature.

What evidence could be used to convince policy makers to change a shipping lane from going through a whale breeding ground? information on the number of all whale species currently alive information on the number of all whales hit by boats in the given area information on the number of whale deaths in the world's oceans information on the number of whale offspring born every year. (a) scientists could collect and combine data on fish populations all around the world to show that their populations are declining. (b) scientists collect and combine data on fish populations all around the world to show that their populations are increasing. (c) scientists work together and use past data to show that fish populations are becoming locally extinct in some areas. (d) scientists work together and use past data to show that some fish populations are adapting to environmental changes.