Human Body Systems

Multiple Choice

photo- means

• power

• light

• oxygen

• water

Multiple Choice

negative geotropism means the "shoots" move in which direction?

• down

• up

• negatively

• positively

Multiple Choice

Gibberellins are responsible for

• phototropism

• ethylene

• ripening fruit

• growth of stems and roots

Multiple Choice

The mimosa plant displays thigmotropism by collapsing its leaves in response to touch. Why?

• protection from a loss of minerals to the environment

• protection from poor light availability

• protection from herbivores by becoming less appealing to eat

• protection from overwatering

Multiple Choice

Which of the following is the correct order of the levels of organization (smallest to largest)?

• I don't know how to organize

• cells --> tissues --> organs --> organ systems --> organisms

• cells --> organisms --> organs --> organ systems --> tissues

• tissues --> organisms --> organs --> organ systems --> cells

Multiple Choice

During exercise, the heart beats faster in order to -

• carry digestive juices to the small intestine

• provide muscles with additional oxygen

• lower blood pressure

• digest more food

Multiple Choice

What is the main organ of the integumentary system?

• stomach

• skin

• nerve cells

• bladder

Multiple Choice

What is the main organ of the digestive system?

• stomach

• skull

• arm muscles

• lungs

Multiple Choice

Pulmonary tuberculosis causes breathing difficulties, chest pains and coughing up blood. This is a disease of the

• lymphatic system

• respiratory system

• excretory system

• endocrine system

Multiple Choice

What protects the epithelium (inner lining of the stomach) from the acidity of the stomach?

• expansion of stomach

• nutrients

• mucous coating

• digestion

Multiple Choice

How would the nervous and endocrine systems interact?

• vertebrae protect spinal cord from injury

• hormones provide feedback that affects neural processing

• sensory receptors in bones send signals about body position to the brain

• brain sends signals that control the speed at which food moves throughout the intestines

Multiple Choice

Which body system helps fight off viruses?

• endocrine

• immune

• integumentary

• finger decay system