A class studies the phenomenon of flight or fight in a pack of coyotes. The students learned that over 30 stress hormones are released into an organism's body during a stressful event. The result is a change in breathing pattern, heart rate, and digestion. Which system is responsible for this response and the release of hormones? endocrine system

nervous system

integumentary system

muscular system

Describe pasteur’s results and how they disprove spontaneous generation.

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b. organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.