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

endocrine system

Explanation:

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

explanation:

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.