Life Cycle of Animals Quiz Review: Answer Key
Question / AnswerWhat is a life cycle? /
- An organism’s pattern of birth, growth, reproduction, and death
What is an organism? /
- A living thing
What is an embryo? /
- tiny baby growing inside an egg, a seed, or an organism’s mother
How do scientists study life cycles? /
- By observing organisms through every stage of their life cycle
What is a vertebrate? /
- Animal that has a spine
Name some vertebrates. /
- Chicken, shark, human, turtle
What is an invertebrate? /
- Animal that does not have a spine
Name some invertebrates. /
- Ant, octopus, starfish, butterfly, lobster
Name the four main stages of the human life cycle. /
- Embryo baby growing up adult
Name the four main stages of another animal’s life cycle. / Sheep:
- Embryo birth growing up (lamb) adult (sheep)
What are some similarities between the two life cycles? /
- Both mammals
- Both start as embryos
- Both babies are born alive
What are some differences between the two life cycles? /
- Human life span is longer
- Lambs are able to walk sooner
- Sheep grow thicker hair
What makes an animal a mammal? /
- Born alive
- Drinks milk from mother
- Has hair/fur
What are some similarities between different animals’ life cycles? /
- All animals need to reproduce, become adults, and die
- All go through different stages and make changes
What are some differences between different animals’ life cycles? /
- Some animals need a lot of help from their parents, but some live alone right away
- Some animals are born alive
- Some animals hatch out of an egg
______’s Life Cycle of Animals Quiz Review
Question / AnswerWhat is a life cycle?
What is an organism?
What is an embryo?
How do scientists study life cycles?
What is a vertebrate?
Name some vertebrates.
What is an invertebrate?
Name some vertebrates.
Name the four main stages of the human life cycle.
Name the four main stages of another animal’s life cycle.
What are some similarities between the two life cycles?
What are some differences between the two life cycles?
What makes an animal a mammal?
What are some similarities between different animals’ life cycles?
What are some differences between different animals’ life cycles?
______’s Life Cycle of Animals Quiz Review
Question / AnswerWhat is a life cycle? /
- An organism’s pattern of ______, ______, reproduction, and ______
What is an organism? /
- A ______thing
What is an embryo? /
- tiny baby growing inside an ______, a ______, or an organism’s ______
How do scientists study life cycles? /
- By ______through every stage of their life ______
What is a vertebrate? /
- Animal that has a ______
Name some vertebrates.
What is an invertebrate? /
- Animal that ______have a spine
Name some invertebrates.
Name the four main stages of the human life cycle. /
- ______ baby growing up ______
Name the four main stages of another animal’s life cycle. / Sheep:
- ______ birth growing up (lamb) ______(sheep)
What are some similarities between the two life cycles? /
- Both ______
- Both start as ______
- Both babies are born ______
What are some differences between the two life cycles? /
- Human life span is ______
- Lambs are able to ______sooner
- Sheep grow thicker ______
What makes an animal a mammal? /
- Born ______
- Drinks ______from mother
- Has ______
What are some similarities between different animals’ life cycles? /
- All animals need to ______, become adults, and die
- All go through different ______and make ______
What are some differences between different animals’ life cycles? /
- Some animals need a lot of ______from their parents, but some live ______right away
- Some animals are born ______
- Some animals hatch out of an ______