Ecoclogy Flashcards

1
Q

Photosynthesis
what does chlorophyll do?

A

is the green in a planet and it converts light energy into chemical energy during the day

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2
Q

difference between photosynthesis and cellular respiration

A

p=converts sunlight, CO2, and water into glucose and oxygen
cr=breaks down glucose to release energy (ATP) producing CO2 and water

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3
Q

Density

A

affects growth rate of a population due to how crowded it is

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4
Q

Density formula

A

D=m/v

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5
Q

Niche

A

is a job in an ecosystem
ex) finding food, habitat, relationship

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6
Q

Types of Ecosystem

A

terrestrial (desert, forest)
aquatic
manmade

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7
Q

Ecosystem

A

connecting with biotic community and abiotic environment

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8
Q

What is each step of a food chain/ web called

A

trophic levels

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9
Q

overexploitation

A

over - harvesting, fishing, hunting

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10
Q

parasite

A

an organism that lives in another harming it

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11
Q

Habitat loss

A

destroying habitats from humans and not replacing it

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12
Q

2 types of competition

A

interspecific
intraspecific

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13
Q

interspecific

A

2+ families beefing

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14
Q

intraspecific

A

beef between 1 family

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15
Q

biomagnification

A

increase of toxins through trophic levels

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16
Q

bioaccumulation

A

increase of harmful toxins in 1 anima

17
Q

why are scientists scared of extinction

A

extinction is normal but human activity increased it

18
Q

Earth’s forehead

A

lithosphere, hydrosphere, biosphere, atmosphere

19
Q

how are invasive species controlled

A

chemically
biologically
mechanically

20
Q

species richness

A

the # of species in a community

21
Q

main greenhouse gases

A

CO2
Carbon vapour
methane

22
Q

what humans are doing to mitigate

A

reducing the use of energy
using public transport
use renewable resources

23
Q

the effects of climate change

A

more droughts/floods
increase of temp.
serve weather
loss biodiversity

24
Q

carrying capacity

A

is the max. population that can be sustained with the available resources

25
Q

some reasons populations decrease and increase

A

D=not enough food and room
I=lots of room mates
lots of food

26
Q

factors affecting biodiversity?

A

density
anthropogenic factors
competition
habitat loss
parasites
overexploitation

27
Q

energy pyramid

A

amount of energy that is available to the level of the food chain
APEX
SECONDARY
PRIMARY
PRODUCERS

28
Q

original source of energy in a food chain

A

sun

29
Q

anthropogenic factors

A

human activity that harms the environment

30
Q

wildlife exploitation

A

animals that are killed by humans
it has a great hold on the population

31
Q

food chains

A

is a series of steps in which organisms transfer energy

32
Q

food webs

A

has all the food chains of an environment

33
Q

3 types of consumers

A

herbivores, carnivora and omnivores

34
Q

equilibrium

A

a balance between all organisms and their needed resources

35
Q

climax community

A

populations of plants or animals remain stable and exist in balance with each other and their environment

36
Q

ecological footprint

A

the amount of energy and resources a human uses

37
Q

biotic

A

living things in an environment

38
Q

abiotic

A

non-living things in an environment