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Science: Life Cycles of Some Animals > What is a life cycle? > Flashcards

What is a life cycle? Flashcards

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Biology 101 flashcards
1
Q

What do all living things go through?

A

A life cycle, i.e. changes throughout their lives.

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2
Q

What is a cycle?

A

A pattern that repeats itself continuously

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3
Q

What do living things do?

A

Reproduce and have young.

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4
Q

Do the young go through a similar life cycle as their parents?

A

Yes. In this way, living things of the same kind continue to be found on earth.

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5
Q

Why do the young go through a similar life cycle as their parents?

A

So that living things of the same kind can continue to be found on earth.

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6
Q

What are the different stages in the life of a living thing?

A

Birth, growth, development and reproduction. These different stages make up a cycle called a life cycle.

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7
Q

What happens when living things become adults?

A

They are able to reproduce. Their young will go through the same stages in their lives, just as the parents did.

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8
Q

Does a life cycle repeat itself?

A

Yes.

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9
Q

Why is a life cycle important?

A

Because it ensures the survival and continuity of living things. When the parents die, the young will continue to live and have young when they reach adulthood.

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10
Q

Do different animals have different stages of growth and development?

A

Yes. Some living things have more stages in their life cycles than others.

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11
Q

Can the young of animals look similar or look very different from their parents?

A

Yes.

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12
Q

Name the young of an animal that may look similar to its parent.

A

Kitten / cat

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13
Q

Name the young of an animal that may look different from its parent.

A

Tadpole / adult frog

caterpillar / butterfly

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14
Q

What is the life cycle of a human like?

A

Egg… egg develops into a baby inside the mother until it is ready to be born
Young… a baby is born alive. The baby looks like an adult
Adult… a fully developed human adult is able to reproduce.

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15
Q

What is the life cycle of a chicken like?

A

Egg… eggs are laid on land. Each egg has a hard shell that protects the young animal growing inside.
Young… a chick looks like an adult
Adult… an adult chicken is able to reproduce

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16
Q

Why does the egg of a chicken have a hard shell?

A

to protect the young animal growing inside.

17
Q

What is the life cycle of a frog like?

A

Egg…. eggs are laid in water. Each egg has a jelly-like covering
Young… a tadpole lives in water. It does not look like an adult. It has a tail and breathes through its gills.
Adult… an adult frog lives on land and in water. It does not have a tail and gills anymore. It breathes with its lungs and skin instead.

18
Q

How does an adult frog breathe?

A

With its lungs and skin.

19
Q

Does an adult frog have a tail and gills?

A

No.

20
Q

Name some animals that have a three-stage life cycle.

A 
Chicken
Frog
Cockroach
Grasshopper
Dragonfly

egg / young (nymph) /adult

21
Q

Name some animals that have a four-stage life cycle

A

Butterfly
Mosquito
Beetle
egg / larva / pupa / adult

22
Q

What does a nymph do as it grows?

A

It moults several times.

23
Q

Does a nymph look like a adult?

A

Yes, except that it is smaller and does not have wings.

24
Q

What is a nymph like?

A

Very active and eats a lot.

25
Q

What is moulting?

A

Growing of new skin and shedding the old one.

26
Q

Where does a tadpole live?

A

In water.

27
Q

How does a tadpole breathe?

A

Through its gills.

28
Q

How does a frog breathe?

A

With its lungs and skin.

29
Q

Where are the eggs of a cockroach laid in?

A

Within an egg case.

30
Q

Does an adult cockroach have wings? Can it fly?

A

Yes.

31
Q

Where are the eggs of a grasshopper laid in?

A

Soil

32
Q

What is the larva of a butterfly called?

A

Caterpillar

33
Q

What does the caterpillar live on?

A

Plants. It eats a lot and moults several times as it grows.

34
Q

What is the life cycle of a mosquito like?

A

egg, larva (wriggler), pupa and adult

35
Q

What is the larva of a mosquito called?

A

Wriggler

36
Q

How do the mosquito larva and pupae breathe?

A

Through air tubes that pierce through the water surface.

Science: Life Cycles of Some Animals (1 decks)

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