Chp2

Question 1

Species

Answer 1

A group of organisms sharing common characteristics that interbreed and produce fertile offspring

Question 2

Habitat

Answer 2

The environment in which a species normally lives

Question 3

Niche

Answer 3

The particular set of abiotic and biotic conditions and resources and resources to which an organism or population responds

Question 4

Fundamental niche

Answer 4

Full range of conditions and resources in which a species could survive and reproduce

Question 5

Realized niche

Answer 5

The actual conditions and resources in which a species could survive and reproduce

Question 6

Abiotic factors

Answer 6

The non-living physical factors that influence the organisms and ecosystem eg. Temperature sunlight

Question 7

Biotic factors

Answer 7

The interaction between organisms eg. Predation herbivory

Question 8

Population

Answer 8

A group of organisms of the same species living in the same area at the same time and which are capable of interbreeding

Question 9

S and J population curves

Answer 9

A generalized response of populations to a particular set of conditions (abiotic and biotic factors)

Question 10

Predation

Answer 10

When one animal hunts and eats another organism

Question 11

Herbivory

Answer 11

An interaction where an animal feeds on a plant

Question 12

Carrying capacity

Answer 12

The number of organisms or the size of population that an area or ecosystem can support sustainably over a long period of time

Question 13

Parasitism

Answer 13

One species benefits at the expense of the other - harmful

Question 14

Mutualism

Answer 14

Two organisms live together - both benefit

Question 15

Pathogen

Answer 15

An organism that causes disease eg. Bacteria

Question 16

Competition

Answer 16

The demand by individuals for limited environmental resources

Question 17

Community

Answer 17

Group of populations living and interacting with each other in a common habitat

Question 18

Ecosystem

Answer 18

A community and the physical environment it interacts with

Question 19

Respiration/photosynthesis

Answer 19

Processes with inputs outputs and transformations of energy and matter

Photo light to chem energy
Res chem to kinetic energy

Question 20

Tropic level

Answer 20

The position that an organism occupies in a food chain or a g pup of organisms in a community that occupy the same position in food chains

Question 21

Bio accumulation

Answer 21

Buildup of persistent/non biodegradable pollutants along a food chain eg. DDT

Question 22

Bio magnification

Answer 22

The increase in concentration of persistent/non biodegradable pollutants along a food chain

Question 23

Decomposes

Answer 23

Build up humus in soul that improves the ability of soil to retain nutrients

For cycling matters