In which ecosystem would I find the following things:
1. A lot of mammals
2. Usually warm weather
3. Very few trees
4. Fertile soil

• grassland
• forest
• ocean
• estuary

The following picture is an example of...

• population
• community
• microorganism
• predator

Which list contains only biotic factors of an ecosystem?

• deer, microorganisms, and roses
• rocks, water, and sand
• rainbow trout, water, and microorganisms
• oak trees, dirt, and grass

Which one would be considered  an abiotic factor of an ecosystem?

• a wave in the ocean
• a fish jumping out of the water
• a horse running across the field
• an elm tree

Which one is NOT one of the basic needs for all living things?

• shelter
• sunlight
• water
• temperature

Which aquatic ecosystem has both salt and fresh water that is mixed together (brackish water)?

• estuary
• lakes
• ponds
• oceans

Which word describes the relationships (or interactions) between living and nonliving things?

• ecosystem
• population
• community
• habitat

Any living thing is the definition for what vocabulary word?

• Organism
• Population 
• Limiting factor
• Communtiy

What is one way that living organisms use abiotic factors of an ecosystem? 

• By eating plants
• By drinking water 
• By taking shelter in trees
• By preying on animals

Ava decides to spend the weekend observing the squirrels in the neighborhood. As she watches them, she takes photos and makes notes about their activities. The drawing shows one of the activities she observes. Ava observes the squirrels in many types of interactions. Which of the following is an interaction with an abiotic factor of the environment?

• Catching beetles on the lawn
• Drinking water from a stream
• Burying acorns by an oak tree
• Running from a neighbor's cat