Aleech attaches to an animal and feeds off the animal's blood. what happens to the animal the leech attaches to in this scenario? it loses nutrients to the leech. it gains nutrients from the leech. it will be killed and eaten by the leech. it will kill and eat the leech.

Previous pagenext pagepage 3 of 10question 3 (1 point)which of the following consist of cells that do not have a nucleus? of the above

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons