Which of the following would be deposited by a river first?

a.) sand
b.) silt
c.) small rocks
d.) large rocks

Plants that have reproductive structures called cones are?

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Modern whales developed their traits through natural selection what occurs during the process of natural selection