biosphere

Question 1

symbiosis

Answer 1

living together

Question 2

mutualism

Answer 2

both animals benefit
Ex: a small fish cleans the teeth of a large fish

Question 3

commensalism

Answer 3

one benefits and the other is unaffected
Ex: a bird builds a nest in a tree

Question 4

Parasitism

Answer 4

one benefits and the other is harmed
Ex: a tick on a dog

Question 5

Predation

Answer 5

eats and kills prey
[is not a symbiotic relationship.]

Question 6

Limiting factors

Answer 6

things that limit the growth of a population and may cause it to decrease.
It includes competitions in pursuit of water, food, space, shelter, etc.
More include rainfall, light, temperature, predators, and disease.

Question 7

Biomes

Answer 7

major {land} defined by climate {and plants and animals} 9-20
Ex: tropical rainforest
ky. Temperature forest /deciduous forest
Taiga/boreal forest
Desert
Tundra
Grassland
Savannah
*freshwater
*marine [ocean]

Question 8

Invasive species

Answer 8

An organism that is not native to the natural environment and has invaded

Question 9

Ecological succession

Answer 9

the progress in which ecosystems change and develop over time

Question 10

Primary succession

Answer 10

organisms move into an area where no life previously existed
ex: a lava rock where a glacier used to be

Question 11

secondary succession

Answer 11

ecosystems grow and change in an area where there are living things
ex: after a forest fire