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Science > life cycle > Flashcards

life cycle Flashcards

1
Q

what does the life cycle show?

A

A life cycle shows how living things grow and change over time

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2
Q

how do most plant life cycles start?

A

seed

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3
Q

what are two ways an animal can be born

A

egg or live birth

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4
Q

which of these animals goes through metamorphasis during its life cycle? Penguin, chicken, gorilla, frog

A

frog

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5
Q

At what stage of a life cycle is the butterfly able to fly? Egg, Larva, Pupa, Adult?

A

Adult

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6
Q

How is a chicken born?

A

Mating and an egg

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7
Q

Do frogs start their life cycles on land or water?

A

water

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8
Q

stages of a frogs life cycle in order?

A

egg –> tadpole –> tadpole with legs and arms –> frog

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9
Q

Describe the metamorphasis a butterfly goes through over its lifetime.

A

egg—> caterpillar –>Chrystal stage –> butterfly

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10
Q

what type of food does a tree use to grow and what is it called?

A

Glucose - a type of sugar.

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11
Q

how do trees absorb water and minerals?

A

Through their roots

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12
Q

How do trees make glucose?

A

leaves.

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13
Q

How does the tree “eat”?

A

It sends glucose from the leaves to the other parts of the tree (trunk, branches, roots)

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14
Q

what is the recipe for photosynthesis?

A

Light (the sun), water (from the roots), carbon dioxide (from the air), Chlorophyll (from the cells of the green plants)

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15
Q

What is photosynthesis?

A

The process by which glucose sugar and oxygen is produced. Photosynthesis occurs when a tree uses the sunlight and chlorophyll to convert carbon dioxide and water into glucose.

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16
Q

what turns leaves green?

A

chlorophyll

17
Q

why do trees change color in fall?

A

because there is less sunlight and water for photosynthesis.

18
Q

True or False, a tree hibernates?

A

True, trees lose their leaves and store their food.

19
Q

what are the only living organisms that can make their own food?

A

Plants

20
Q

how do plants make their food?

A

by combining carbon dioxide gas in the air with water and nutrients that are absorbed in the soil using the energy they get from the sun- carbon dioxide and water react chemically to change into glucose and oxygen (photosynthesis)

21
Q

Write out the equation for photosynthesis

A

carbon dioxide (CO2) + water (H20) ==> sunlight ==> glucose + Oxygen

22
Q

where do plants store excesss glucose?

A

roots, stems and seeds of the plants

23
Q

True or false: the plants energy is transferred to the animals that eat them

A

true

24
Q

how do plants capture the suns energy?

A

because of chloroplasts on the leaves that contain chlorophyll. chlorophyll gives the leaves its green colour and is what is responsible for helping absorb solar energy

25
Q

True or False- Plants continue to make energy at night.

A

false - when there is no light, plants stop making energy,

26
Q

why are plants leaves broad and flat?

A

It is adapted to trap sunlight and carbon dioxide- a wide broad surface will capture far more light. (think solar panels)

27
Q

how do plants get their minerals?

A

through the soil using their roots.

28
Q

what will happen if the soil does not have enough nutrients?

A

the plant will not grow properly.

29
Q

what do farmers add to the soil if it does not have enough nutrients?

A

fertilizer

30
Q

why is photosynthesis one of the most important chemical reactions in the world?

A

1-it makes food for plants and animals and animals depend on them for food.
2-they breathe in carbon dioxide and release oxygen into the air for humans to breathe -otherwise we would suffocate
3- they remove carbon dioxide which is responsible for global warming

31
Q

what are the stages of the life cycle of mammals?

A

Birth, growth, reproduction and death

32
Q

what are the stages of the life cycle of living things that go through metamorphasis?

A

egg, larva, pupa (metamorphasis) and adult.

33
Q

chicken

A

egg stage, chick stage, pullet stage and adult stage

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