Structures and Functions
Ecosystems
Structures and Functions
100

What is the smallest unit that makes up all living organisms? 

A cell

100

What is a food chain?

The order in which living things depend on each other for food.

100

What is the act of living?

Survival

200

What is the internal framework of the human body?

The Skeletal System.

200

What are forest and grasslands?

Terrestrial Ecosystems.

200

The brain, nerves, and spinal cord are a part of what body system?

Nervous System

300

What is another word for the Circulatory System?

Cardiovascular System

300
Saltwater and estuaries are what kind of ecosystems?

Aquatic

300

What is unicellular?

Consisting of a single cell

400

What are at least three parts of the Respiratory System?

Nose, Trachea, lungs, diaphragm

400

What is an organism that decomposes an organic material?

Decomposers

400

The mouth, esophagus, stomach, and intestines are part of what body system?

Digestive System

500

What is having or consisting of many cells?

Multicellular

500

What factors make up ecosystems?

Biotic and Abiotic Factors

500

What is an organized system of kinds of organs arranged together that perform complex functions for the body?

Human Body Systems