interdependance Flashcards

1
Q

why do most plants and flowers grow in spring?

A

to catch as much light as possible before the beech tree leaves are fully out.

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2
Q

why do plants find it difficult to grow in summer?

A

because larger trees take most of the light, minerals and water.

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3
Q

name 2 things that are in competition with each other?

A

beach tree leaves and flowers

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4
Q

what is an ecological niche?

A

the role an animal plays that contributes toward the ecosystem (where they populate)

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5
Q

what are the two types of squirrels that are in competition?

A

the native red squirrel and the american grey squirrel

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6
Q

what has resulted in a decline of red squirrels?

A

grey squirrels taking over wooded area

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7
Q

what is the competition between red and grey squirrel called?

A

inter specific competition, because its between two different species

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8
Q

what would competition between different grey squirrels be called?

A

intraspecific competition

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9
Q

how do oxpeckers help buffalo?

A

they feed on the insects that live on buffalos skin. In return the oxpecker gets plenty of food

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10
Q

what does a tapeworm do?

A

takes food from its host to grow

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11
Q

where does a tapeworm grow?

A

in its hosts digestive system

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12
Q

why doesent a tapeworm kill its host?

A

because otherwise it would die

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13
Q

what is a relationship called where both animals benefit eachother?

A

mutualism

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14
Q

give an example of a cleaner species?

A

the shark sucker which attaches itself to sharks. It eats the parasites and in return the shark offers protection

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15
Q

what is a lemming?

A

a small hampster like animal that lives in the arctic

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16
Q

what causes a change in population (lemmings)?

A

because they reproduce rapidly it means food becomes scarce so the population drops. However when it becomes too low food grows so female lemmings can reproduce

17
Q

what hunts lemmings?

A

snowy owls

18
Q

what is a pea plant?

A

a legume

19
Q

what is the structure of a pea plant?

A

it has roots called root nodules

20
Q

what do the root nodules do to nitrogen?

A

a bacteria lives inside the nodules that convert nitrogen into nitrates. These bacteria are called nitrogen-fixing bacteria

21
Q

how are the pea plant and nodules mutualistic?

A

the nitrates help it grow. The pea plants gives the bacteria sugar, which then turns into energy