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Grade 9 · Science · Unit 1 of 11

Reproduction

Asexual and sexual reproduction

What your child practises

How organisms reproduce with one parent or two, why sexual reproduction creates variety, the parts of a flower, and the strengths and weaknesses of each approach.

New Brunswick Curriculum skill descriptor: Scientific Literacy: Sensemaking · reproduction in living things

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    In plants, what are the male parts of a flower called (together)?

    • sepals
    • petals
    • pistils
    • stamens

  2. Question 2

    Which is a way flowering plants reproduce sexually?

    • A leaf grows into a new plant
    • Pollen from one flower fertilizes another flower's ovule
    • A tuber sprouts
    • A branch is cut and planted

  3. Question 3

    Which is an advantage of asexual reproduction?

    • It requires two parents.
    • It creates lots of genetic variety.
    • It prevents all diseases.
    • Organisms can reproduce quickly without finding a mate.

  4. Question 4

    Asexual or sexual reproduction? Sort each example.

    Sort into: 1️⃣ Asexual · 2️⃣ Sexual

    • 🐝a bee carries pollen to an apple flower
    • 🦠bacteria split in two
    • 🌻a seed grows from a pollinated flower
    • 🐟a salmon's egg is fertilized by a sperm
    • 🪸a hydra grows a bud
    • 🐦a bird lays fertilized eggs
    • 🥔a potato eye grows into a new plant
    • 🪴a spider plant sends out a plantlet

  5. Question 5

    What is fertilization?

    • When a cell divides in two
    • When a plant makes sugar
    • When a seed is planted
    • When a sperm cell and an egg cell join

  6. Question 6

    Why does sexual reproduction increase variety within a species?

    • Parents choose which genes to pass on.
    • Offspring are copies of one parent.
    • Offspring get a new mix of genes from two parents.
    • Mutations never happen.

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