The bones of the skeleton are held together at the joints by ligaments and tendons. bones are covered with a special tissue called

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

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.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?