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Online Quiz (Worksheet A B C D)

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Upper Elementary Science - I
2.30 Invertebrates: Life Cycle of a Moth

A moth's life has four stages -- egg, larva, pupa and adult.

All insects begin life as an egg. When the egg of a moth hatches, the young looks very different from the adult. It looks like a very small worm with short legs. It is called a caterpillar or larva.

The larva does nothing but eat. It grows bigger and bigger until it reaches its full size. Then it enters the third stage called the pupa.

Sometimes a caterpillar spins a silk covering around itself for protection during the pupa stage. This covering is called a cocoon. When a caterpillar is in the pupa stage, a great change takes place. The worm like caterpillar turns in to an adult moth with four large wings and six long legs. Even the mouth parts are different. The caterpillar had strong jaws for chewing leaves. But the adult has mouth parts that coil up under its head like a spring. It can extend these mouth parts into flowers to sip up the nectar.

After mating, a female moth lays eggs and life cycle of the moth continues.


Directions: Answer the following questions.
Q 1: Moth undergoes four developmental life stages: the egg, larva (caterpillar), pupa (chrysalis), and adult.
True
False

Q 2: A(n) _____ emerges from the chrysalis.
pupa or chrysalis
adult
egg
caterpillar

Q 3: Which is the primary eating and growing stage of an insect.
adult
egg
caterpillar
pupa or chrysalis

Q 4: During this stage, a marvelous transformation from caterpillar to adult takes places.
caterpillar
adult
pupa or chrysalis
egg

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Question 6: This question is available to subscribers only!


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