2a

Question 0

interdependence

Answer 0

all organisms interact with other organisms around them and the nonliving parts of their environment

Question 1

ecology

Answer 1

study of relationships between living and non living things of the world

Question 2

abiotic

Answer 2

non living

Question 3

biotic

Answer 3

living

Question 4

levels of organization

Answer 4

organism 
population
community
ecosystem
biome
biosphere

Question 5

ecosystem

Answer 5

all organisms in a given area and the abiotic factors that affect it

Question 6

habitat

Answer 6

place an organism lives out its life

Question 7

niche

Answer 7

role and position a species has in it’s environment

Question 8

predation

Answer 8

more predators more prey

more prey more food for predators

Question 9

competition

Answer 9

populations must compete for resources
pop grows-> resources in high demand

then pop must decrease if demand greater than supply by less reproduction and killing each other

Question 10

symbiotic relationship

Answer 10

between organisms of two different species that live together in direct contact

Question 11

commensalism

Answer 11

one organism benefits and the other is not affected

examples are Spanish moss and barnacles

Question 12

mutualism

Answer 12

both organisms benefit

examples are Acacia trees and bacteria in humans

Question 13

parasitism

Answer 13

one organism benefits and the other is harmed
some live within the host like tapeworm and bacteria
some feed on the external surface of the host like fleas
most do not kill the host