7th grade intro to ecology quiz

Ecology is the study of

• brain cells

• interactions between organisms with each other and their environment

• nature

• oceans

Which of the following is a biotic factor?

• parasites

• wind

• temperature

• water

Which of the following is an abiotic factor in an ecosystem?

• flies

• grass

• flowers

• rocks

A group of killer whales is an example of a ______________________

• community

• population

• ecosystem

Organisms that are closely related and can mate to produce offspring are called _____________________.

• communities

• populations

• species

• rabbits

An oceanic _____________________ is made of fish, sharks, corals. water, dolphins, and kelp

• community

• population

• niche

What are the two largest climate factors that determine a biome

• sunlight and water

• temperature and amount of precipitation

• plants and animals

Nonliving and living things interact together within an area is best defined as _________________________________.

• habitat

• niche

• ecosystem

• population

A squirrel lives in a tree is an example of a __________________.

• niche

• habitat

• biome

• water

Worms serve as decomposers in the environment best describes ____________________________.

• Habitat

• niche

• rabies

• species