Bio Flashcards

(63 cards)

1
Q

air

A

the atmosphere

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2
Q

water

A

the hydrosphere

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3
Q

land

A

the lithosphere

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4
Q

Biosphere

A

is the part of the planet where living things exist

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5
Q

ecosystem

A

the ecosystem involves the interaction of biotic and abiotic things (non-living and living)

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6
Q

Do ecosystems vary in sizes?

A

Yes
they can vary from under a rock to an entire rainforest

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7
Q

population

A

a population is a group of species or animals living in the same area

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8
Q

a community

A

is made of different populations interacting with eachother

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9
Q

How do you mntain the balance of ecosystems?

A

Air is the key to ecosystems and is cycled throughout plants and animals.

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10
Q

what is the main energy source?

A

The Sun

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11
Q

what do plants do with light energy?

A

Since they are autotrophs, they convert the light energy to chemical energy using a process called photosynthesis

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12
Q

what are organisms that CANT make their own food?

A

Heterotrophs

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13
Q

cuticle

A

providing protection against external environmental stresses

can be located up the very top

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14
Q

upper epidermis

A

It helps protect the leaf in preventing water loss and provides an extra layer between the outside and inside of the leaf

2nd to the top / underneath cuticle

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15
Q

Palisade Mesophyl

A

where most of the photosynthesis occurs in the leaf.

3rd to the top / under upper epidermis

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16
Q

spongey mesophyl

A

helps the exchange of gases essential to the process of photosynthesis

circular / weirdly shaped.
under palisade mesophyl

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17
Q

stomata ( stoma )

A

involved in the exchange of carbon dioxide and water between plants and the atmosphere.

tiny hole in the plant

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18
Q

Guard cell

A

control the opening and closing of pores

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19
Q

xylem

A

carries water from the roots to all parts of the tree or plant.

the vascular system

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20
Q

phloem

A

transport and distribution of the organic nutrients.

the vascular system

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21
Q

what makes the plants green?

A

chlorophyll

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22
Q

what is glucose?

A

it helps the growth and repair of a plant

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23
Q

word equation for photosynthesis

A

light
carbon dioxide + water ———–> glucose + oxygen.
chlorophyl

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24
Q

celluar respiration

A

Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy,

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25
Do all living cells respire?
yes
26
Whats the energy in plants molecule, released as?
ATP remember it as a Tint packet of energy
27
where does cell respiration occur?
the mitochondria
28
aerobic cellular respiration
Glucose + O2 → CO2 + H2O = ATP
29
What does aerobic respiration need?
oxygen
30
What does anaerobic respiration not need?
oxygen
31
fermentation
when fungi, bacteria and yeast use glucose to create energy
32
Fermentation (word equation)
glucose --> ethanol + carbon dioxide
33
competition
the rivalry between living things for territory, resources, goods, mates
34
Predators
- kill - catch - hunt - consume -benefit
35
prey
- hide -flee - adapt - victims
36
what are ecosystems grouped by?
Trophic levels (feeding)
37
what does the size of each animal level show?
their total ammount of energy
38
When an animal is consumed what percentage of that animals energy is taken?
10%
39
1. primary source
Is like a plant or flower (autortophs)
40
2. primary consumers
- these are like bugs / consume plants
41
3. secondary consumers
like rats / consume bugs
42
teritary consumer
lion/cats/dogs - eat the rat
43
what are food chains?
a series of organisms each dependent on the next as a source of food.
44
what are food webs?
a system of interlocking and interdependent food chains.
45
the seven nutrients
1. carbon 2. oxygen 3. water 4. potassium 5. calcium 6. nitrogen 7. phosphorus
46
conservation of mass
is neither created or destroyed
47
conservation of energy
can be created but not destroyed
48
the 5 steps of the water cycle
evaporation, transpiration, condensation, precipitation, and runoff.
49
combustion
a chemical process in which a substance reacts rapidly with oxygen and gives off heat. ( this is what factories release into the atmosphere)
50
Abiotic
a nonliving factor that can help shape the environment and its conditions - water -weather -sun -soil
51
Biotic
living factor that can shape an enviroment - animals -plants -bugs
52
where does photosynthesis occur
spongey + palisade mesophyl
52
what does photosynthesis need
chlorophyl, sunlight, carbon dioxide, water
52
consumers
heterotrophs who need to eat, in order to survive.
52
producers
usually autotrophs
53
decomposer
a decomposer is a living thing that breaks down, plants, animals, or waste. In order to create a simpler substance. They are vital to the food chain.
54
human impact
- climate change - fossil fuels (combustion) -deforestation (habitat loss)
55
environmental impact
- light - temp -wind - natural disasters
56
systematic error
not by chance but is because of an innaccuracy observational error (looking at something on a weird angle)
57
random error
due to chance - irregular changes in temp (fluctuations in sun)
58
dependant variables
is what changes, and what we measure
59
independent variable
isnt changed nor is it measured / stands alone
60
controlled variable
it is a consistent thing such as temp