Unit test/BA Flashcards

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0
Q

what is the equation for photosynthesis?

A

CO2+H2O——–> C6H2O6+O2

(Sunlight). (Glucose)

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1
Q

What is the source of all energy in any ecosystem on Earth?

A

The son

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2
Q

what is the energy source in photosynthesis?

A

Sunlight

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3
Q

What are some disruptions that occur in an environment when certain organisms are removed from the ecosystem?

A

Overpopulation of some species, a niche may not be taken care of

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4
Q

How does matter cycle through an ecosystem?

A

matter gets cycled from environment to organisms and back again

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5
Q

Describe the nitrogen cycle

A

The nitrogen moves back and forth between the atmosphere and living things

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6
Q

describe the carbon cycle

A

Includes open burning, respiration, photosynthesis, death and decay, and pollution

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7
Q

What is nitrogen fixation and how does it work?

A

It changes nitrogen gas from the air into nitrate that plants can use to grow

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8
Q

how is energy stored in an ecosystem?

A

in the cells of the organisms

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9
Q

what’s the difference between the law of conservation of matter and law of conservation of energy?

A

Energy cannot be recycled and is converted into a form we can’t use. matter can be recycled

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10
Q

abiotic

A

not living

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11
Q

biotic

A

living

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12
Q

mutualism

A

both species are benefitted

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13
Q

commensalism

A

one species benefits and the other one is not affected

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14
Q

parasitism

A

one species is harmed and the other is benefitted

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15
Q

carnivore

A

meat eater

16
Q

herbivore

A

to eat plants

17
Q

omnivore

A

both plant and meat eater

18
Q

autotroph

A

self consuming

19
Q

heterotroph

A

different consumption

20
Q

food web

A

a web that shows the energy flow between organisms

21
Q

food chain

A

a series of tropic levels that shows the energy flow between organisms

22
Q

tropic level

A

feeding step

23
Q

producer

A

something that makes it’s own food

24
Q

consumer

A

someone that eats something from which it gets it’s energy

25
Q

how much energy is transferred from each tropic level?

A

10% of the energy is transferred to the next tropic level

26
Q

scavenger/decomposer

A

one that goes after an organism has fed and eats the rest

27
Q

symbiosis

A

the interaction between organisms

28
Q

what is primary succession

A

less common. SOIL MUST ME MADE

29
Q

secondary succession

A

SOIL DOES NOT NEED TO BE MADE

30
Q

what is exponential growth and what does it mean for populations?

A

growth at an increasing rate (J-curve)