NAME _______________________________________________ HOMEROOM ______________________
DATE __________________________
PARENT SIGNATURE & DATE (BONUS PTS.) ________________________________________________________________
LIFE CYCLES STUDY GUIDE
Directions: 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
gene
1. ________________________
2. ________________________
3. ________________________
4.
5.
6.
7.
________________________
________________________
________________________
________________________
heredity
life cycle
metamorphosis
photosynthesis
trait
The process by which plants make sugar for energy
A characteristic that makes one organism different from another
A growth process in which an animal goes through major changes in body
form over the course of the life cycle
The basic unit of heredity
All the stages an organism goes through
Processes by which characteristics pass from parents to offspring
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? __________________________________________
______________________________________________.
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?
_________________________________________________
21. Which process does the picture show?
______________________________________
22. Which stage is missing from this plant life cycle?
______________________________________
23. What makes Grant such a fast runner?
______________________________________
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.
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
SCIENCE OPEN RESPONSE
Comparing Life Cycles
25. 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.
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
B. Explain TWO differences in the life cycle of a grasshopper and the life cycle of a butterfly.
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________
_____________________________________________________________________________________________