Energy and Ecosystems

Ecological Organization

100

What is a group of similar organisms that can breed and produce fertile offspring?

Species

200

What is a group of individuals of the same species living in the same area?

population

300

Different populations living together form this.

community

400

All organisms living in an area along with their physical environment.

ecosystem

500

Put these in order from smallest to largest:

biosphere, community, population, ecosystem, species, biome

species, population, community, ecosystem, biome, biosphere

Producers and Consumers

100

Organisms that capture energy from nonliving sources.

autotrophs (producers)

200

The process that uses sunlight, carbon dioxide, and water to make carbohydrates

photosynthesis

300

Organisms that must acquire energy from other organisms.

heterotroph (consumer)

400

An animal that eats both plants and animals

omnivore

500

Compare a scavenger and a decomposer

scavenger eats already dead organisms, and decomposers break down dead organisms

Energy Flow

100

A series of organisms through which energy is transferred

food chain

200

A network of feeding interactions

food web

300

What is each step in a food chain called?

trophic level

400

According to the 10% rule, if producers have 10,000 calories, approximately how many calories reach the consumer

1,000

500

Which ecological pyramid shows the relative amount of living tissue available at each trophic level?

pyramid of biomass

Cycles of Matter

100

WATER VAPOR COOLS AND FORMS TINY DROPLETS TO MAKE THESE

clouds

200

WATER FALLING FROM THE CLOUDS TO EARTH’S SURFACE IS CALLED THIS

precipitation

300

THE PROCESS BY WHICH BACTERIA CONVERT NITROGEN GAS INTO AMMONIA

nitrogen fixation

400

MATTER IS RECYCLED THROUGH ECOSYSTEMS IN THESE CYCLES

biogeochemical cycles

500

ENERGY DOES THIS, WHILE MATTER DOES THIS

energy flows, matter cycles

Ecology Mixed Bag

100

Any living part of an organism’s environment

biotic

200

A nonliving part of the environment

abiotic

300

What is the base of every ecological pyramid?

producers

400

what is a biome?

a group of ecosystems that share the same climate and organisms

500

what nutrient is often responsible for algal blooms when it becomes abundant in the aquatic ecosystems

phosphorus

Math and Science

100

If producers have 1,000 energy units, how much reaches primary consumers

100

200

If primary consumers have 500 units, how much reaches the secondary consumer

5

300

Name the trophic level with the most energy

1st - bottom of pyramid - producers

400

Name the trophic level with the least energy

apex predator - top consumer

500

If producers have 50,000 calories, how many calories reach the third trophic level

50