NAME _______________________________________________ HOMEROOM ______________________ DATE __________________________

PARENT SIGNATURE & DATE (BONUS PTS.) ________________________________________________________________

LIFE CYCLES STUDY GUIDEDirections: Fill in the blanks with the correct word or words or circle the box containing the correct answer to each question. Feel free to use your science textbook to help you (Pages 86-123).

VOCABULARY

direct development heredity metamorphosis traitgene life cycle photosynthesis

1. ________________________ The process by which plants make sugar for energy 2. ________________________ A characteristic that makes one organism different from another 3. ________________________ A growth process in which an animal goes through major changes in body

form over the course of the life cycle 4. ________________________ The basic unit of heredity 5. ________________________ All the stages an organism goes through 6. ________________________ Processes by which characteristics pass from parents to offspring 7. ________________________ A growth process in which an animal gets larger without going through

major changes in body form

SCIENCE CONCEPTS AND UNDERSTANDING

8. Which part of a plant feeds the embryo until the plant can make its own food? ______________

9. Ferns and mosses reproduce _____________________________________.

10. ___________________________ carry instructions for your growth and development.

11. The first stage of incomplete metamorphosis is _______________________________.

12. ___________________________ best explains the resemblance between offspring and parents.

13. The body is completely developed in the _____________________ stage of the human life cycle.

14. Where do an offspring’s genes come from? __________________________________________

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15. Most animals begin their life cycle as ________________________________________.

16. _____________________________________ grow from storage stems called tubers.

17. _____________________________________ is a trait determined ONLY by heredity.

18. After its birth, a _________________ is an animal most likely to survive and thrive without

receiving care from one or both parents.

19. A _________________________ is a kind of animal that goes through direct development.

20. Which of this girl’s characteristics is NOT controlled by genes?

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21. Which process does the picture show?

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22. Which stage is missing from this plant life cycle?

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23. What makes Grant such a fast runner?

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24. Write 1, 2, 3, and 4 to indicate the correct order of development in this animal’s life cycle.

_____ _____ _____ _____

What kind of development do the pictures show? Explain your answer.

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SCIENCE OPEN RESPONSE

Comparing Life Cycles25. Look at the diagrams below of two animal life cycles.

A. Explain TWO similarities in the life cycle of a grasshopper and the life cycle of a butterfly.

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B. Explain TWO differences in the life cycle of a grasshopper and the life cycle of a butterfly.

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