Unit 5.15 Review - Body System Interactions

The ___________ consists of the brain and spinal cord and is responsible for processing information and sending out responses.

• Muscular System

• Peripheral Nervous System

• Central Nervous System

• Immune System

Which term is the basic cell of the nervous system?

• axon

• dendrite

• neuron

• stem cells

What behavior can BOTH humans and flatworms do?

• smell fresh food

• communicate verbally

• see the shape of an approaching predator

• form images from sensory signals

The diagram shows an electrical impulse moving through the axon of a neuron.

Which sections of the diagram show the actual transmission of an impulse through an axon?

• A-B

• B-C

• A

What happens when an action potential reaches the end of the axon?

• The neuron takes up chemical messengers-neurotransmitters

• The neuron releases chemical messengers-neurotransmitters

• The sodium ions travel back toward the dendrites.

• The potassium ions travel back toward the cell body.

Which illustration shows the direction in which an action potential travels through a neuron?

• A

• B

• C

Which statement BEST describes the life cycle of plants such as ferns?

• Plants have a 2 part life cycle, spending part of their life in a diploid phase and part in a haploid phase.

• Plants have a single life cycle and are entirely diploid.

• Plants have a single life cycle and are entirely haploid.

• Different plants have a different number of phases in their life cycle.

Which structure of a flowering plant produces female reproductive cells, or eggs?

• stigma

• petal

• ovule

• anther

Refer to the illustration.

In which 2 structures of a flowering plant will haploid cells be found?

• A and C

• B and C

• A and B

• A and D

Refer to the illustration.

In which structure do pollen grains develop?

• A

• B

• C

• D