Study Guide 4th nine weeks

In humans, which of these is required for carrying oxygen from the lungs to body cells?

• A. Plasma

• B. Red blood cells

• C. Platelets

• D. White blood cells

Miranda learned how the human body carries out life functions. Which is the most basic level of organization in the human body? 

• an organ

• a system

• a tissue

• a cell

The human body is made up of different levels of organization. A tissue is a group of cells that work together to perform a specific function. Which would be an example of a tissue in the human body?

• A. stomach

• B. platelets

• C. muscle

• D. hair

Kendall studied the ways in which human body systems work together. He compared the respiratory and circulatory systems. In which way are these two systems similar to each other?

• A. They both bring oxygen to the body.

• B. They both send messages to the body.

• C. They both digest nutrients for the body.

• D. They both pump blood through the body.

Noah studied different systems in the human body. Which best describes a function of veins in the circulatory system? 

• A. carrying blood from the body to the heart

• B. supplying nutrients from the intestines to the body

• C. carrying carbon dioxide from the body to the lungs

• D. passing waste materials from the blood to outside the body

Human muscle cells need nutrients and oxygen during exercise. The human body is able to meet the needs of the muscle cells during exercise by increasing

• A. digestion.

• B. excretion.

• C. secretion.

• D. circulation.

Which human organ system primarily exchanges gases between the body and the atmosphere?

• A. excretory

• B. nervous

• C. skeletal

• D. respiratory

In the human body, what part of the central nervous system connects with other nerves outside of the central nervous system?

• A. dendrite

• B. cerebrum

• C. cerebellum

• D. spinal cord

What is the first line of defense in the human body against infection and disease?

• A. the skin

• B. vitamins

• C. red blood cells

• D. white blood cells

The diagram represents the organizational levels in the human body.

Which of these belongs in level 3?

• A. skeleton

• B. neuron

• C. lung

• D. blood