Chapter 18 Vocab

Question 1

Biotic

Answer 1

Describes living factors in the environment.

Question 2

Abiotic

Answer 2

Describes the non living part of the enviroment; including water, rocks, light, and temperature.

Question 3

Population

Answer 3

A group of organisms of the same spices that live in a specific geographical area.

Question 4

Community

Answer 4

All the populations of species that live in the same habitat and interact with each other.

Question 5

Ecosystem

Answer 5

A community of organisms and their abiotic enviroment.

Question 6

Biosphere

Answer 6

The part of Earth where life exists.

Question 7

Herbivore

Answer 7

An organism that eats only plants.

Question 8

Carnivore

Answer 8

An organism that eats animals

Question 9

Omnivore

Answer 9

An organism that eats both plants and animals.

Question 10

Ecology

Answer 10

The study of living organisms with one another and with their environment.

Question 11

Food Chain

Answer 11

The pattern of energy transfer through various stages as a result of the feeding patterns of a series of organisms.

Question 12

Food Web

Answer 12

A diagram that shows a feeding relationship between organisms in an ecosystem.

Question 13

Energy Pyramid

Answer 13

A triangular diagram that shows an ecosystem’s loss of energy.

Question 14

Carrying Capasity

Answer 14

The largest population that an environment can support at any given time.

Question 15

Prey

Answer 15

An organism that is killed and eaten by another organism.

Question 16

Predator

Answer 16

An organism that eats all or part of another organism.

Question 17

Symbiosis

Answer 17

A relationship in which two different organisms live in close association with each other.

Question 18

Mutualism

Answer 18

A relationship between two species in which both species benefit.

Question 19

Commensalism

Answer 19

A relationship between two organisms in which one organism is benefited while the other is unaffected.

Question 20

Parasitism

Answer 20

A relationship between two species in which one species, the parasite, benefits from the other, the host, which is harmed.

Question 21

Coevolution

Answer 21

The evolution of two species that is due to mutual influence, which benefits both species.