Definitions

Question 1

Ecosystem

Answer 1

A biological community of interacting organisms and their physical environment

Question 2

Environment

Answer 2

The surroundings or conditions in which a person, plant or animal lives or operates

Question 3

Abiotic

Answer 3

Physical rather than biological; not derived from living organisms

Question 4

Biotic

Answer 4

Resulting from living things

Question 5

Producer

Answer 5

An autotrophic organism that serves as a source of food for other organisms in a food chain

Question 6

Consumer

Answer 6

A person or thing that eats or uses something

Question 7

Heterotroph

Answer 7

An organism deriving it’s nutritional requirements from complex organic substances

Question 8

Autotroph

Answer 8

An organism that is able to form nutritional organic substances from simple I organic substances such as CO2

Question 9

Herbivore

Answer 9

Something that feeds on plants

Question 10

Carnivore

Answer 10

An animal that eats meat

Question 11

Omnivore

Answer 11

An animal or person that eats food or both plant and animal origin

Question 12

Detritus

Answer 12

Waste or debris of any kind

Question 13

Scavenger

Answer 13

An animal that feeds on carrion, dead plant material or refuse.

Question 14

Decomposer

Answer 14

An organism that decomposes organic material

Question 15

Trophic level

Answer 15

Each of several hierarchical levels in an ecosystem

Question 16

Community

Answer 16

A group of interdependent organisms of different species growing or living together in a specified habitat

Question 17

Population

Answer 17

A community of animals, plants, or humans among whose members interbreeding occurs

Question 18

Species

Answer 18

A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding

Question 19

Biotic potentiometer

Answer 19

Maximum reproductive capacity of a population under optimal environmental conditions

Question 20

Carrying capacity

Answer 20

The number of people, other living organisms, or crops that a region can support without environmental degradation

Question 21

Population density

Answer 21

Measurement of population per unit area or unit volume

Question 22

Ecology

Answer 22

The branch of biology that deals with the relations of organisms to one another and their physical surroundings