A scientist has several specimens from the same time period from several thousand years ago. Which two specimens should he study so that he can learn about the amount of rainfall at that time and the kinds of plants that grew then?

The gene for petal color in a flower has incomplete dominance, so that individuals with two A1 alleles (A1A1) are black, individuals with two A2 alleles (A2A2) are white, and individuals with one of each allele (A1A2) are mottled.

The hydrogen and oxygen atoms are held together by

What is the main function of the cell membrane in all cells

Which of the following populations would be least likely to survive a change in its ecosystem? A. brown bears that can eat a variety of different kinds of food. B. koalas that eat only eucalyptus leaves. C.

Is tetragenococcus halopphilus gram positive or gram negative?

Oceangoing vessels used to dump sewage into the ocean. Which human lifestyle factors led to this situation? select the three correct responses. A. People enjoy cruise vacations. (correct) B. People need to cross the ocean. (correct) C.

A large percentage of bacteria are harmful to humans and cause disease. a. True b. False

The climate in the Siberian tundra

Function of amyloplast

Rabbits feed on plants in a meadow. What would happen to the rabbits if the plant population gets destroyed