Matter & Energy
Photosynthesis & Cellular Respiration
Ecosystems & Organization
Feeding Relationships & Symbiosis
Challenge & Application
100

Anything that has mass and takes up space is called:

Matter
100

Plants use this process to make their own food.

Photosynthesis

100

Living parts of an ecosystem are called:

Biotic Factors

100

An organism that hunts another organism is called a:

Predator

100

A rabbit population suddenly increases. What will most likely happen to the coyote population over time?

Increase

200

The smallest unit of an element is called a:

atom

200

What gas enters a plant during photosynthesis?

Carbon Dioxide (CO₂)

200

Water, soil, sunlight, and temperature are examples of:

Abiotic Factors

200

An organism hunted by a predator is called:

Prey

200

A drought causes many plants to die. What will happen first to herbivore populations?

They will decrease because food becomes limited.

300

What are the starting materials in a chemical reaction called?

Reactants

300

What gas enters an organism during cellular respiration?

Oxygen (O₂)

300

A group of deer living in the same forest is called a:

Population

300

A bear eats fish and berries. What type of consumer is the bear?

Omnivore

300

A forest contains trees, birds, insects, squirrels, fungi, soil, water, and sunlight. What level of organization does this represent?

Ecosystem

400

What are the substances formed after a chemical reaction called?

Products

400

Which organelle performs photosynthesis?

Chloroplast

400

A forest contains deer, trees, birds, fungi, and insects. What level of organization is represented?

Community

400

A clownfish receives protection from a sea anemone, while the sea anemone receives nutrients and cleaner water. What type of symbiotic relationship is this?

Mutualism

400

A tick feeds on a deer and gains nutrients. The deer loses blood and may become sick. What type of relationship is this?

Parasitism

500

A student combines hydrogen and oxygen atoms to form water. Is water an element, atom, molecule, or compound?

Compound

500

Which Organelle performs cellular respiration?

Mitochondria

500

What are the two things needed for a population to grow?

Resources and the ability to reproduce

500

A tick feeds on a dog and gains nutrients while the dog loses blood. What type of symbiotic relationship is this?

Parasitism

500

A drought causes plants to die in a grassland ecosystem. What is the MOST likely sequence of events?

Herbivores decrease, predators decrease