1. Chapter 3
Life Cycles

2. Lesson 1: Plant Life Cycles
Key Vocabulary

3. 1. embryo-
A plant or animal in the early stages of development

4. 2. germinate-
to begin growing a new plant

5. 3. life cycle-
a series of stages that occur during the lifetime of a living thing

6. 4. life span-
the length of time it takes for an individual organism to complete its life cycle

7. Notes
The ___________ of the flower makes pollen which is needed to form ___________.
3 ways pollen can be moved from the __________ to the __________:
Wind
Water
Animals (insects)

9. Notes
_________ _________ petals attract birds and insects to a flower.
Life Cycle of a Flowering Plant:
A. Pollen is moved from the ___________ to the ___________.
B. The plant forms a __________.
D. When the seed ___________, a young plant will grow.
C. The plant releases a ___________.

10. Notes
For flowering plants, the life span begins when a seed __________.
In organisms that are similar, such as trees, the smaller kinds usually have shorter life spans than the larger kinds.

11. Lesson 2: Animal Life Cycles
Key Vocabulary

12. 1. adult-
A fully grown, mature organism

13. 2. egg-
The first stage in the life cycle of most animals

14. 3. larva-
A worm-like form and the second stage of complete metamorphosis

15. 4. metamorphosis-
The process in which an animal changes form in different stages of its life cycle

16. 5. nymph-
The second stage of incomplete metamorphosis

17. Lesson 2 Notes Egg Larva Adult Pupa
1. Life cycle with __________ metamorphosis.
Egg
Larva
Adult
Pupa

18. Lesson 2 Notes Egg Adult Nymph
2. Life cycle with __________ metamorphosis.
Egg
Adult
Nymph

19. Lesson 2 Notes All ________ lay eggs, but _________ do not lay eggs.
Many insects change form ______ times.
Examples: Butterflies, Ladybugs, Bean Beetles
In general, _________ _________ have shorter life spans than __________ __________ of the same kind.

20. Lesson 2 Notes
A _________ looks like an adult, but has no _________.

21. Lesson 3: Parents and Offspring
Key Vocabulary

22. 1. inherit-
to receive traits from a parent

23. 2. trait-
a feature or a characteristic of a living thing

24. Lesson 3 Notes
A __________ trait is a trait that is passed from parents to offspring through reproduction. This is why parents and offspring usually ____________ (look like) each other.
Organisms with 2 parents __________ ________ from both parents.
A tadpole looks like its parents after ________ ____________.

25. Lesson 3 Notes Living things resemble their parents
Examples: Blue eyes, curly hair
Examples: Frogs
Some offspring look different, but grow to look like their parents
Organisms inherit traits