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Stack #27652
Mr. Olson 5th Grade Science Chapter 4A
| Question | Answer |
|---|---|
| What structure is the male part of the flower? | stamen |
| After fertilization an ovary enlarges and develops into a what? | fruit |
| Which structure is the female part of the flower? | pistil |
| What part of the flower produces the female sex cells? | ovule |
| Which part holds the pollen grains? | male sex cells |
| Which part of the flower is where pollen grains land and stick? | stigma |
| When it is time to reproduce, salmon return to the ________? | freshwater stream |
| The sprouting of a plant is called ______? | germination |
| Beetles and butterflies go through four stages which make up ______? | complete metamorphosis |
| A young tree is called a what? | sapling |
| What is the tiny new plant that forms from the fertilized egg called? | embryo |
| When a male sex cell joins with a female sex cell to produce a fertilized cell it is called _______. | sexual reproduction |
| The stage of a human life cycle which last from about age 1 to about 12 is called what? | childhood |
| After fertilization an ovary enlarges and develops into a what? | fruit |
| Human life cycle | stages from birth to death. |
| Infancy | birth to age 1, completely dependent on parent.Traits inherited from parents. |
| childhood | ages 1-12, ability to walk and talk, growth fairly steady, learns many skills such as to speak,learn, and learns a lot from environment. |
| Adolescence: | ages 11-20, growing into adulthood |
| Adulthood | ages 20-till death, greatest strength and endurance, responsible??? |
| Male life expectancy | 72.2 years |
| Female life expectancy | 78.8 years |
| Insect life cycle-complete metamorphosis | egg, larva, pupa, adult |
| egg | 1st stage, eggs are laid by adults |
| larva(grub) | wormlike stage, eats decaying wood or other rotting materials in the soil. |
| pupa | looks like its at rest, develops a hard outer case, adult organs form |
| adult: | final stage, fully grown |
| Vertebrate | animal with a backbone, constant body temp. |
| cold blooded | body temp changes with environment. |
| Sexual reproduction | a male sex cell joins with a female sex cell to produce a fertilized egg. |
| Pollen grains(plant) | contains male sex cell |
| Pollination | transfer of pollen grains |
| embryo | a fertilized egg, a tiny new plant the seed enlarges to form fruit |
| stamen | male part of flower |
| pistil | female part of flower |
| Stage 1 of plant reproduction | pollen lands on pistil |
| Stage 2 of plant reproduction | pollen tube grows down into ovary and fertilization take place |
| Stage 3 of plant reproduction | fruit begins to grow |
| Stage 4 of plant reproduction | seeds form in the fruit |
| Stage 5 of plant reproduction | fruit ripens, splits open releasing new seeds |
| asexual reproduction | growing plants without using seeds |
| Deciduous trees | lose their leaves |
| Conifers | evergreen stay green all year |
Created by:
mr.olson
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