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Animal Growth & Reproduction

6 Organisms that go through complete metamorphosis go through four stages of development. Complete the steps.

7 Label the stages of the butterfly’s life cycle.

1 Organisms such as mammals and birds have simple life cycles; they look similar to their parents when they are born. Which of these organisms looks similar to its parents when born? Circle it.

3 The process of a change in the appearance and form of an animal during its life cycle is called __________. Circle the answer.

2 Many organisms have complex life cycles and do not look like their parents when they are born. Cross out the organism that looks totally different from its parents when born.

10 Circle the organism(s) that lay eggs instead of having live births.

9 When a male sperm and a female egg meet to form an offspring, this is called __________.

8 Most _________________ have live births, which means the baby or babies develop inside the female parent. Then the parent gives birth to a live baby, rather than an egg.

5 Give an example of an organism that goes through complete metamorphosis.

4 This diagram of a dragonfly’s life cycle, shows that it goes through

__________________ metamorphosis.

SciD

Name ____________________________ Class __________________ Date ____________

horse dog butterfly

reproduction

reproduction

metamorphosis

metamorphosis

fertilization

fertilization

germination

germination

egg

nymph

adult

larva adult

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© Copyright MMXVI NewPath Learning. All Rights Reserved. Permission is granted for the purchaser to make copies for non-commercial educational purposes only. Visit us at www.newpathworksheets.com

Animal Growth & Reproduction - Answer Key

6 Organisms that go through complete metamorphosis go through four stages of development. Complete the steps.

7 Label the stages of the butterfly’s life cycle.

1 Organisms such as mammals and birds have simple life cycles; they look similar to their parents when they are born. Which of these organisms looks similar to its parents when born? Circle it.

3 The process of a change in the appearance and form of an animal during its life cycle is called __________. Circle the answer.

2 Many organisms have complex life cycles and do not look like their parents when they are born. Cross out the organism that looks totally different from its parents when born.

10 Circle the organism(s) that lay eggs instead of having live births.

9 When a male sperm and a female egg meet to form an offspring, this is called __________.

8 Most _________________ have live births, which means the baby or babies develop inside the female parent. Then the parent gives birth to a live baby, rather than an egg.

5 Give an example of an organism that goes through complete metamorphosis.

4 This diagram of a dragonfly’s life cycle, shows that it goes through

__________________ metamorphosis.

SciD

Name ____________________________ Class __________________ Date ____________

horse dog butterfly

reproduction

reproduction

metamorphosis

metamorphosis

fertilization

fertilization

germination

germination

egg

nymph

adult

larva adultegg

incomplete

eggadult

caterpillar (larva)

chrysalis (pupa)

pupa

mammals

open-ended

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the printable version of this worksheet

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