U1P3

Question 1

are scientific models static

Answer 1

no change as we learn more or information is gained

Question 2

invasive species

Answer 2

species introduced by humans into new habitats

Question 3

what is backed might an invasive species have on an ecosystem

Answer 3

they may carry disease prey on native species and disrupt food webs

Question 4

what are some of the effects of global climate change due to the burning of fossil fuel’s

Answer 4

it raises earths air and ocean temperature and causes rising sea levels

Question 5

ozone

Answer 5

atmospheric layer that absorbs greenhouse gases

Question 6

greenhouse effect

Answer 6

The greenhouse effect is the process in which greenhouse gases raise earth’s temperature

Question 7

land conversion

Answer 7

clearing of natural habitats for agriculture or housing/changing the purpose of the land away from its natural usage

Question 8

ozone depletion

Answer 8

when the ozone layer starts to deteriorate

Question 9

Global warming

Answer 9

refers to the increase in Earth’s average surface temperature

Question 10

Overharvesting

Answer 10

harvesting livestock (such as overfishing or overhunting) to the point where the population is depleted

Question 11

deforestation

Answer 11

The clearing of trees which increases CO2 in the atmosphere

Question 12

over exploitation

Answer 12

harvesting natural resources (such as mining) to the point where the supply is depleted

Question 13

overpopulation

Answer 13

when the population is too big for the environment to support

Question 14

biological magnification

Answer 14

The increasing concentration of toxins towards the higher trophic level

Question 15

invasive species

Answer 15

A non-native species in an ecosystem

Question 16

Ocean acidification

Answer 16

reduction in the pH of the ocean over an extended period of time, caused primarily by uptake of CO2 from the atmosphere

Question 17

model

Answer 17

object or idea that can be material, visual, mathematical, or computational

Question 18

criteria

Answer 18

a standard of judgement or criticism

Question 19

mitigate

Answer 19

make less severe, serious, painful

Question 20

constraint

Answer 20

a limitation or restriction

Question 21

tradeoff

Answer 21

a balance achieved between two desirable but incompatible features- a compromise