Why do plants produce less oxygen during the night? O A. Photosynthesis stops at night.
O. B. Photosynthesis only occurs at night.
O c. Cellular respiration only occurs at night.
O D. Cellular respiration stops at night
SUB

As a result of these processes the single celled organism accomplishes

Which of the following are responsible for sending messages from the hypothalamus to the thalamus?

What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.