Intro to Ecology

Humans depend on plants for oxygen.  What do humans provide for plants that helps with photosynthesis?

• Carbon Dioxide

• Water

• Sunlight

• Oxygen

Plants provide us with oxygen. What process do humans need the oxygen for?

• photosynthesis

• cellular respiration

• digestion

• breathing

What is the largest ecological system?

• 
  

• biome

• ecosystem

• biosphere

• ecosphere

What are some of the BIOTIC (living) factors in this ecosystem?

• fish, duck, water

• rocks, water, air

• dragonfly, trees, cloud

• turtle, plants, fish

A community is

• all biotic factors in an area

• all abiotic factors in an area

• all abiotic and biotic factors in an area

Identify the correct order from LARGEST to SMALLEST.

• Biosphere, Community, Ecosystem, Population, Organism

• • Organism, Population, Community, Ecosystem, Biosphere

• • Biosphere, Ecosystem, Community, Population, Organism

• • Biome, Ecosystem, Population, Community, Organism

A habitat is your _________.

• home

• job

• space

• identity

In science, when you add "a-" in front of a word, it means...

• not

• always

• before

• add

Your niche is like your

• home

• job

• school

• identity

Which of these have a more specific role in an ecosystem?

• generalist

• specialist