Question

multiple choice
identify the choice that best completes the statement or answers the question.

1. food is taken in and broken down by the ____ system. the nutrients are then transported throughout the body by the ____ system.

a. digestive and respiratory
b) respiratory and cardiovascular
c) digestive and cardiovascular
d) excretory and nervous

1. tissues in the human body, such as cardiac tissue, are made up of

a) organs
b) nerves
c) blood
d) cells

Explanation:

1. The digestive system takes in and breaks down food. The cardiovascular system transports nutrients throughout the body.
2. Tissues in the human body, including cardiac tissue, are made up of cells. Cells are the basic building - blocks of tissues.

Answer:

1. C. Digestive and Cardiovascular
2. D. Cells