9th Grade Biology Standard 3/Objective 2 – Study Guide

Cardiovascular/Circulatory System

What does the heart do?

What do the arteries do?

What do veins do?

What do capillaries do?

What other systems work with the circulatory system? _____________________________________________________________________________________________________________________________________________________________________________________________________

Animals that have less heart chambers than humans: _____________________________________________________________________________________________________________________________________________________________________________________________________

What is the advantage of having a four-chambered heart? __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Respiratory System

What other organ systems work with the respiratory system?

Digestive System

What does the esophagus do?

What happens in the mouth?

What happens in the stomach?

What happens in the small intestine?

What happens in the large intestine?

Sheep vs. chicken

Ruminant

Bird

Integumentary System What organs/structures are part of the integumentary system in other animals?

Nervous System

Autonomic vs Voluntary:

What other organ systems are associated with the nervous system?

Neuron

Skeletal System

Axial:

Appendicular:

Functions of skeletal system:

Kinds of tissue found in the skeletal system:

DID YOU KNOW THAT EVERY SINGLE BONE IS A SEPARATE ORGAN?

Muscular System

Do muscles pull or push?

What other organ systems work with the muscular system?

Homeostasis

Too hot? Too cold?

Excess sugar?

High blood pressure?

Broken bone?

Exercise?

Reproductive System

Let’s compare the reproductive systems of a fern and a peach!

Ferns:

1. Ferns reproduce without ___________ or __________.

2. Ferns produce .

3. Spores reproduce by .

4. Spores release into the and become gametophytes. They are very tiny and only one cell thick.

5. The underside of the gametophyte has both and reproductive structures and they produce sperm or eggs.

6. The sperm has to swim through to reach the egg, which stays on the gametophyte. That’s why ferns are usually in .

Peaches:

1. Like any fruit tree, peach trees use to reproduce.

2. In each ____________ there are both male and female parts.

3. If environmental conditions are correct, it .

4. Insects carry ___________ from the male __________ to the female ____________.

5. During ________________ the ovules are fertilized and the seed begins to grow.

6. As the seed grows, a _______ _______ grows around it. This wall is made of ____________.

7. Once the peach is eaten, it ends up on the __________ where the seed ______________ and the peach life cycle begins anew.