P LANT AND A NIMAL L IFE C YCLES 4 th grade Chapter 3 Science

10 P OINTS How does a new plant begin to grow? It germinates

T EN P OINTS What is an embryo? a plant or animal in the earliest stages of development

T EN P OINTS What is an egg? the first stage in the life cycle of most animals

20 POINTS What is the larva stage in an animal’s life cycle? a worm-like form and the second stage of complete metamorphosis

20 P OINTS What is the nymph stage in the life cycle of some insects? the second stage of incomplete metamorphosis

20 POINTS What are 3 traits that are inherited to the offspring from the parent? Hair color Eye color Shape of leaves or color of flower

30 POINTS What are the 3 stages in the life cycle of a plant? a. Pollen moves from stamen to pistil where the seeds are produced b. The seeds are released c. Seeds germinate into new plants

30 POINTS Do all plants have the same life span? No, some plants live for only one growing season such as a tomato plant, others grow for 100’s of years such as redwood trees

30 POINTS Describe one way the life cycles of insects and mammals are different? Insects are hatched from eggs while mammals are born live.

40 POINTS What are some things that could affect the life span of an organism? Supply of air, water, nutrients, disease could all affect the life cycle of an organism.

Describe the 3 stages of INCOMPLETE Metamorphosis. Egg, nymph, adult

F INAL J EOPARDY – 50 POINTS Describe the 4 stages of COMPLETE Metamorphosis Egg, larva, pupa, adult

15 C OMPARE : H OW I S THE L IFE CYCLE OF A BIRD DIFFERENT FROM THE LIFE CYCLE OF A BEAR ? H OW ARE THEIR LIFE CYCLES SIMILAR ? Different: Birds lay eggs and bears do not. Alike: Both are born as infants who grow up to look like their parents.

16. I NFER : I F THE NUMBER OF BEES IN AN AREA DECREASES, HOW MIGHT THE FLOWERING PLANTS IN THE AREA BE AFFECTED ? E XPLAIN. Plants rely on bees to move pollen from stamen to pistil to create seeds.

17. A PPLY W HAT MIGHT HAPPEN IF YOU TOOK THE POLLEN FROM A ROSE BUSH THAT YELLOW FLOWERS AND PUT IT ON THE PISTILS OF A ROSE BUSH THAT HAS PINK FLOWERS. E XPLAIN YOUR THINKING. Rose plants might produce some offspring w/pink flowers or some yellow and pink or orange, or no seeds at all.

18. S YNTHESIZE W HAT ARE SOME OF THE SIMILARITIES BETWEEN PLANT LIFE CYCLES AND ANIMAL LIFE CYCLES ? Both plants and animals are born, grow to become adults and die

19. E VALUATE Y OUR FRIEND SAYS THAT THE LIFE SPAN OF A PLANT OR AN ANIMAL ALWAYS DEPENDS ON THE SIZE OF THE ORGANISM. H OW WOULD YOU RESPOND TO THIS STATEMENT ? It is true that most large organisms live longer than smaller organisms.

20 A NALYZE W HEN DRAGONFLIES ARE BORN, THEY DO NOT HAVE WINGS. B UT ADULT DRAGONFLIES DO HAVE WINGS. H OW CAN A NEWLY BORN DRAGONFLY LOOK SO DIFFERENT FROM AN ADULT DRAGONFLY. E XPLAIN. dragonflies go through metamorphosis. Animals grow up to look like their parents.