Chapter 2- Principles Of Biology

Question 0

Biological community

Answer 0

Made up of interacting populations in a certain area at a certain time

Question 1

Abiotic factor

Answer 1

Non living parts of environment

Question 2

Biosphere

Answer 2

The portion of earth that supports living things

Question 3

Biotic factor

Answer 3

Living organisms that inhabit an environment

Question 4

Commensalism

Answer 4

Symbiotic relationship in which 1 species benefits and the other species is neither harmed nor benefited

Question 5

Ecology

Answer 5

Study of interactions that place between organisms and their environment

Question 6

Ecosystem

Answer 6

Made up of interacting populations in a biological community and the community’s abiotic factors

Question 7

Habitat

Answer 7

The place where an organisms lives out it’s life

Question 8

Mutualism

Answer 8

Both species benefit

Question 9

Niche

Answer 9

All strategies and adaptions a species uses in its environment

Question 10

Parasitism

Answer 10

One species derives benefit at the expense of another species(the host)

Question 11

Population

Answer 11

Group of organisms; all same species, which interbreed an live in the same area at the same time

Question 12

Symbiosis

Answer 12

Relationship in which there is a close and permanent association between organisms of different species

Question 13

Autotroph

Answer 13

Organism that uses light energy or energy story in chemical compounds to make energy-rich compounds

Question 14

Biomass

Answer 14

Total weight of living matter at a trophic level

Question 15

Decomposer

Answer 15

Break down the complex compounds of dead and decaying plants and animals into simpler molecules that can be easily absorbed

Question 16

Food chain

Answer 16

Simple model that scientists use to show how matter and energy move through an ecosystem

Question 17

Food web

Answer 17

Shows all possible feeding relationships at a trophic level in a community

Question 18

Heterotroph

Answer 18

Organism that cannot make it’s own food and feeds on other organisms

Question 19

Trophic level

Answer 19

Each organism in a food chain represents a feeding step in the passage of energy and materials