Cuál es el proceso para el cual las especies dejan descendientes fértiles

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.

What is a group of organisms that are closely related and share similar characteristics

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel