Characteristics of Life
Ecosystems: Biotic & Abiotic
Life in an Ecosystem
Energy Roles in Ecosystems
Photosynthesis, Plants, & Cellular Respiration
100

What characteristic of life explains why your body maintains a stable temperature?

Homeostasis

100

Are rocks biotic or abiotic?

Abiotic

100

The place where an organism lives is called its ____.

Habitat

100

What type of organism makes its own food?

Producer

100

What are the two main reactants of photosynthesis?

Carbon dioxide + water

200

All living things are made of one or more ____.

Cells

200

Give one example of a biotic factor in a forest ecosystem.

Animals, plants, fungi, bacteria, etc.

200

A group of the same species living together in the same area is a ____.

Population

200

Animals that eat plants or other animals are called ____.

Consumers

200

What is the main product of photosynthesis that provides energy to living things?

Glucose

300

What characteristic of life is shown when a sunflower turns toward the sun?

Response to stimuli


300

What do we call all the living and nonliving things interacting in an area?

An ecosystem

300

What is a species?

 a group of similar organisms that can reproduce similar organisms

300

What organisms break down dead matter and return nutrients to the soil?

Decomposers

300

What part of the plant absorbs sunlight?

The chloroplasts inside the leaves

400

Name 4 characteristics of life

Made of cells, homeostasis, metabolism, reproduction, genetics, adaptation, response to stimuli, growth

400

Identify the abiotic factor that is the main source of energy for most ecosystems.

Sunlight

400

Identify each: A wolf pack in Yellowstone, Yellowstone National Park, a single wolf, and a forest den.

Habitat, Ecosystem, Population and Species

A wolf pack: Population

Yellowstone: ecosystem

A single Wolf: species (individual organism)

Forest Den: habitat

400

Draw or describe the correct order of a basic food chain.

Producer → Primary Consumer → Secondary Consumer → Tertiary Consumer

400

Which structures of the plant take in carbon dioxide and release oxygen?

Stomata

500

Name 2 characteristics of life and give an example of each

answers may vary

500

A pond dries up during a drought. Explain how an abiotic factor caused changes in biotic factors.

Organisms die, migrate, or decrease due to lack of water

500

Describe the difference between a habitat and an ecosystem

Habitat = where an organism lives; Ecosystem = interactions between biotic + abiotic

500

Only about __% of energy moves from one trophic level to the next

10%

500

Identify the products of cellular respiration.

Carbon dioxide, water, ATP (energy)