Why is earth’s atmosphere rich in oxygen and poor in carbon dioxide, whereas the reverse is true on venus? what would happen to earth’s oceans if earth were a little bit closer to the sun?

What is the best-known carbohydrate?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.