S7A - Unit A Review

Which of the following is a biotic factor?

• flower

• water

• sunlight

• oxygen

Which of the following is an abiotic factor?

• deer

• tree

• carbon dioxide

• grass

Which of the following is a species?

• a school of fish

• an anthill

• a pond

• a moose

Which of the following is a population?

• a whale

• a flock of birds

• a forest

• a coral reef

Which of the following is a community?

• a lake

• a mosquito

• a herd of deer

• a pack of wolves

Which of the following is NOT a basic need for survival?

• oxygen

• energy

• entertainment

• water

What is the name of an interaction where BOTH organisms BENEFIT?

• mutualism

• commensalism

• parasitism

• symbiosis

What is the name of an interaction where ONE organism benefits and the OTHER is unaffected?

• mutualism

• commensalism

• parasitism

• symbiosis

What is the name of an interaction where ONE organism BENEFITS and the OTHER is HARMED?

• mutualism

• commensalism

• parasitism

• symbiosis

Runoff from fertilizer on a farm accumulates in a lake . . . is this Human Activity or Nature changing an ecosystem?

• Human Activty

• Nature