Biology Self-Check

The cell membrane main purpose is...

• Selective Permeability

• Energy Production

• Locomotive

• Looking good

What containes all the DNA?

• Cytoplasm

• Fatty Acids

• Nucleus

• Ribosomes

What is the smallest unit of life in the human body?

• organ

• cell

• body system

• tissue

Which system provides structure and support for the body?

• skeletal

• muscular

• digestive

• excretory

Which system breaks down food?

• excretory

• circulatory

• respiratory

• digestive

Which system protects the body from pathogens?

• circulatory

• immune

• nervous

• skeletal

All of the body systems work together to maintain stability and balance in the body. Another word for this is...

• homeostasis

• hypothesis

• stimulus

• holographic

Weather (such as rain) and soil conditions are considered to be part of the ____________ factors of an ecosystem.

• biotic

• antibiotic

• abiotic

• biomass

All the nonliving things in an environment are called the ________ factors.

• abiotic

• biotic

• ecological

• inorganic

What is an example of a biotic factor?

• water

• grass

• soil