Ecology

Question 1

Biotic factor

Answer 1

created by a living thing or any living component within an environment

Question 2

Abiotic factor

Answer 2

can determine which species of organisms will survive in a given environment

Question 3

Organism

Answer 3

any living thing that can react to stimuli, reproduce, grow, and maintain homeostasis

Question 4

Species

Answer 4

group of closely related organisms that are very similar to each other

Question 5

population

Answer 5

the number of organisms of the same species that live in a particular area

Question 6

Community

Answer 6

group of various species in a common location

Question 7

Habitat

Answer 7

place where an organism or a community of organisms lives

Question 8

Natural selection

Answer 8

Darwin’s theory of evolution, only the organisms best adapted to their environment tend to survive

Question 9

Evolution

Answer 9

the process by which traits that enhance survival and reproduction become more common in successive generations of a population

Question 10

Producers / autotrophs

Answer 10

An organism capable of producing compounds from the process of photosynthesis

Question 11

Consumers / heterotrophs

Answer 11

an organism that generally obtains food by feeding on other organisms

Question 12

Primary consumer

Answer 12

the living organism that eats the producers

Question 13

Secondary consumer

Answer 13

as organisms which eat primary consumers

Question 14

Tertiary consumer

Answer 14

a carnivore at the topmost level in a food chain

Question 15

Herbivores

Answer 15

An animal that eats plants

Question 16

Carnivores

Answer 16

An animal that eats meat

Question 17

Omnivores

Answer 17

a kind of animal that eats either other animals or plants

Question 18

Decomposers

Answer 18

are organisms that break down dead or decaying organisms

Question 19

Food chain

Answer 19

a hierarchical series of organisms each dependent on the next as a source of food

Question 20

Food web

Answer 20

a system of interlocking and interdependent food chains.

Question 21

Energy pyramid

Answer 21

is a graphical model of energy flow in a community

Question 22

Carbon cycle

Answer 22

the combined processes by which carbon as a component of various compounds cycles between its major reservoirs

Question 23

Nitrogen cycle

Answer 23

a continuous series of natural processes by which nitrogen passes successively from air to soil to organisms and back to air

Question 24

Ecological succession

Answer 24

the process by which the structure of a biological community evolves over time

Question 25

Primary succession

Answer 25

is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms

Question 26

Secondary succession

Answer 26

is a process started by an event that reduces an already established ecosystem

Question 27

Pioneer species

Answer 27

are hardy species which are the first to colonize previously biodiverse steady-state ecosystems

Question 28

Climax community

Answer 28

populations of plants or animals remain stable and exist in balance with each other

Question 29

Ecosystem

Answer 29

a biological community of interacting organisms and their physical environment