Biology Pre Test

The non-living organisms of an ecosystem are called ______ .

• Abiotic

• Biotic

A symbiotic relationship where both organisms benefit is

• A pyramid

• Commensalism

• Mutualism

• Competition

This picture is of what lab equipment?

• Microscope

• Cover slip

• Test tube

• Beaker

What is an independent variable?

• The variable you are testing

• The variable you keep constant

• The variable you change on purpose

The process where body cells are copied is called?

• Cellular respiration

• Photosynthesis

• Mitosis

• Meiosis

According to the cell theory...

• All cells have cell walls

• Cells can arise spontaneously

• The cell is the basic unit of structure in organisms

• All cells have a nucleus

A strand of DNA has these bases 
TGA CGG ATC GAT
What is the complementary DNA strand?

• CUG UAA GCU AGC
• CTG TAA TCT AGC
• ACU GCC UAG CUA
• ACT GCC TAG CTA

The major atmospheric by-product of photosynthesis is :

• Carbon dioxide

• Water

• Oxygen

• nitrogen

Jared observes a cell in biology lab with the light microscope. The cell has the following structures: nucleus, cell wall, and chloroplast. Identify the type of cell that Jared is observing.

• animal

• plant

• fungus

• bacteria

On a small island, scientists kept track of the number of wolves and moose over time. Which trend did they record?

• A drop in wolf population and a drop in moose population

• An increase in wolf population and a drop in moose population

• A drop in wolf population and an increase in moose population

• An increase in wolf population and an increase in moose population