ecosystems Flashcards

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1
Q

ecological niche

A

the role a species fulfils in an ecosystem

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2
Q

describe the three oxygen groups yk

A

aerobes (need oxygen)

anaerobes (survive without oxygen)

facultative anaerobes (can do both)

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3
Q

describe the ranges ig

A

optiumum is muy perfecto

stress is shit

intolerance es imposible

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4
Q

ingestion

A

provides the organism with the raw materials crucial for growth

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5
Q

digestion

A

changes the food into what acc can be like it breaks it down

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6
Q

absorption

A

allows the body to extract nutrients from the digested food and transport them to the cells for energy and shit

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7
Q

assimilation

A

like when the food becomes a part of the cell growth development and all

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8
Q

elimination

A

removing useless waste for the body to beable to funvtion properly

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9
Q

mixotrophs

A

both produce their own food and make their own ig depending on availability

like the plant that eats flies (venus flytrap)

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10
Q

facultative mixotroph

A

can switch between heterotroph and autotroph modes depending on the conditions and environment

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11
Q

obligate mixotroph

A

they need both autotrophic and heterotrophic modes to survive

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12
Q

what does a saprotroph do

A

they get energy by breaking down or oxidising chemical compounds

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13
Q

adaptations

A

changes in the body to fit a location

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14
Q

describe the saprotrops: bacteria

A

secrete enzymes that break down organic matter, breaking them down into small molecules which they later eat

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15
Q

describe the saprotroph: mold

A

produce enzymes that typically break down complex organic molecules

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16
Q

describe the saprotrophs: fungi

A

secrete enzymes that break down complex organic compound into simpler forms which thet absorb as nutrients

17
Q

holozoic nutrition

A

many single celled organisms (like amoeba) are capable of that

food particles are taken in by engulfment of the substance (endocytosis) and subsequent breakdown & digestion in specialised vesicles

18
Q

facultative mixotroph

A

can switch between auto and hetero troph depending on the conditions

19
Q

obligate mixotroph

A

they need both auto and hetero troph to survive

20
Q

thorns as a defensive mechanism

A

physical barrier- they make it difficult for herbivores to access the plant tissue for feeding
like the acacia tree has sharp thorns along its branches and those scare off large herbivores like giraffes

inflict pain and discomfort to herbivores who try to feed on it
the blackberry bush is an excellent example its stems are covered in tiny needles, like thorns and when animals try to graze on their leaves or berries they get hurt and scared off

some thorns also produce toxins or some unpleasant shit

21
Q

toxins as adaptations

A

unpalatable taste or smell- disgusts herbivores from eating thhem and shittttt

digestive system distruptions- like the toxins just fuck up the animals digestive system leading to discomfort pain sickjess death and they know that so they stray away
like the castor bean plant which produces ricin (a highly toxic protein found in the seeds)

22
Q

think of ways of how predators are adapted to their job

A

fantastic vision, great hearing abilities, sharp teeth, claws, strong muscles

23
Q

how are bats adapted to their lives

A

ginormous ears so their hearing that they rely on a lot is good
sensitive eyes so somehow they can see in pitch black
the whole echolocation thing
thermoregulation
sleeping upside down

24
Q

adaptations of snakes

A

poisonous
can swallow a lot (boa contractor and pythons can swallow the whole prey) and yeah
camouflage
heat sensing pit organs

25
Q

adaptations of bears

A

muscular large powerful build
strong ahh claws and teeth
an exceptional sense of smell
increeeedible swiming and climbing abilities
intelligent
omnivorous

26
Q

school of herring

A

schooling behaviours they swim together tightly and confuse predators like that

they are rlly fast and agile and havr great sensory perception camouflage and counter shading

27
Q

geckos

A

camouflage and they can blend into their surroundings hunting in the night and they can stand real still

28
Q

emergent layer

A

tallest trees birds insects like korony drzew

29
Q

canopy layer

A

flora and fauna like normal tall trees ale not the tallest

30
Q

understory layer

A

young herbs shrubs and bushes

31
Q

forest floor

A

sciolka lesna humid dark insects and animals

32
Q

epiphytes

A

specialised root adaptations (absorb water and nutrients from air and organic matter accumulated on host surfaces) flexible growth habits
ecological niche

33
Q

vines

A

climbing mechanisms and abilities and they are super flexible as well
large leaves that easily catch the sunlight or small ones that reduce water loss
they easily allocate resources

34
Q

lianas

A

they grow extremely fast
they have long stems
they can alter their growth accordingly to the conditions
storring resources in specialised tissues
uses trees and other means pf vertical support to climb up to the canopy to seek sunlight

35
Q

allelopathy

A

when a plant releases chemicals from its roots leaves of flowers to stop other plants from growing nearby

36
Q

large surface area THA FYCK

A

they can catch and absorb waaay more sunlight, easier to regulate remperature
easoer to make photosynthesis happen ig??

37
Q

shade tolerance co

A

contains more chlorophyll (easier for photosynthesis) maintaining optimal photosynthetic rates at lower light intensities

38
Q

difference between fundamental and realised niche

A

fundamental niche is the range of environmental conditions and resources in which a species can exist IN THE ABSENCE OF OTHER SPECIES it is a potential habitat based solely on its physiological capabilities and tolerance limits

realised niche is the actual range of environmental factors and conditions under which a species can survive considering the fact that there are other species like existing there and all