Vestigial structures are remains of a structure that was functional in some ancestor but is no longer functional in the organism in question.

a. True

b. False

A forest fire burns down most of the trees in a large forest l. the animals that live in the trees are forced to move to other areas. what kind of disturbance is this? A. cyclical B. small C. primary D. secondary

What will happen to a food chain if the species at the bottom dies out

34. Charles Darwin originally published the idea that all species have descended over time from common ancestors. This idea is known as evolution. Evolution is best categorized as A. a scientific hypothesis that has not been researched. B.

Which type of cell can become any type of tissue in an embryo, but not a placenta cell? A. Somatic B. Multipotent C. Totipotent D. Pluripotent

The nurse is caring for a pregnant client who is iron deficient. what groups are vulnerable to this condition? select all that apply.

What is a plate? a the ocean floor b a continent c crust and upper mantle d large piece of the earth's crust

Chemical reactions in cells are faster than the same reactions outside cells. True or false?

Which tree harvesting method promotes the growth of younger trees by selectively cutting mature trees over a period of 10 years?

What is NOT an impact that an invasive non-native species has on an ecosystem?

Which organs of the vestibular apparatus would be activated by movements of the ship at sea?