Which of the following is an example of macroevolution?
a. a tadpole changes form into a frog.
b. a population of fish slowly changes tail shape.
c. a dinosaur species evolves over time into a bird species.
d. a black cat has kittens with white spots.

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.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Explain how scientists use geologic time to determine the age of landforms.