K Chapter 3

Question 1

all the living and nonliving things in an environment and the ways that they affect one another

Answer 1

ecosystem

Question 2

living thing that can make its own food

Answer 2

producer

Question 3

an organism that gets energy from other living things or from the remains of once-living things

Answer 3

consumer

Question 4

an organism that breaks down once-living things, releasing the energy stored in them

Answer 4

decomposer

Question 5

organism that eats only plants

Answer 5

herbivore

Question 6

organism that eats only animals

Answer 6

carnivore

Question 7

an organism that eats both plants and animals

Answer 7

omnivore

Question 8

path by which energy is transferred from one organism to another

Answer 8

food chain

Question 9

an animal that hunts and kills another animal for food

Answer 9

predator

Question 10

an animal that is hunted by another animal

Answer 10

prey

Question 11

an animal that eats a dead or dying animal it finds

Answer 11

scavenger

Question 12

overlapping, or linking, food chains in an ecosystem

Answer 12

food web

Question 13

movement of water through an ecosystem

Answer 13

water cycle

Question 14

movement of carbon and oxygen through an ecosystem

Answer 14

carbon-oxygen cycle

Question 15

movement of nitrogen through an ecosysten

Answer 15

nitrogen cycle

Question 16

a group of the same kind of organism living together in the same region

Answer 16

population

Question 17

all the populations living together in a region

Answer 17

community

Question 18

food, air, water, space, and the right temperature

Answer 18

basic needs