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Variation within species

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Waxaan qeexi karaa tusaalooyinka kala duwanaanshaha shakhsiyaadka isku nooca ah iyo sharxi karaa sababta kala duwanaanshahan.

Introduction

In this lesson: I can describe examples of variation between individuals of the same species and explain what causes this variation. Differences between species are greater than differences within species. There are differences in the features of individuals of the same species, and this is called variation.

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Differences between species are greater than differences within species. There are differences in the features of individuals of the same species, and this is called variation. Some variation is caused only by the environment (e.g. injuries). Some variation is caused only by inherited genetic information in the genome (e.g. blood type). Some variation results from a combination of genetic and environmental/lifestyle factors (e.g. body mass).

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Quizzes

  1. 1. True or false? A tattoo can be inherited.

    • true
    • Correct answer:false

  2. 2. True or false? Variation can be passed on to offspring if it is only caused by genetics.

    • Correct answer:true
    • false

  3. 3. Which statement about members of the **same** species is correct?

    • They cannot reproduce to make offspring.
    • They can reproduce to make offspring of any species.
    • Correct answer:They can only reproduce to make offspring of the same species.
    • They can only reproduce to make infertile offspring.

  4. 4. Which scientific word is used to refer to differences between organisms of the same species?

    • Correct answer:variation
    • reproduction
    • diversity
    • alternatives
    • competition

  5. 5. Which factors will cause variation between animals of the same species?

    • Correct answer:The environmental conditions the animals live in.
    • Correct answer:Injuries to the animals.
    • Similarities between the animals.
    • Correct answer:The animals' genomes.
    • The number of animals living in the habitat.

  6. 6. Which statement about baby orangutans is true?

    • A baby orangutan only looks like its mother.
    • A baby orangutan only looks like its father.
    • Correct answer:A baby orangutan looks like both of its parents.

  1. 1. A broken bone is an example of variation caused by …

    • genetics.
    • environment.
    • Correct answer:lifestyle.

  2. 2. __________ of the animal’s features are caused by genetic information in its cells.

    • All
    • Correct answer:Some
    • None

  3. 3. Dimples in cheeks are an example of variation caused only by …

    • Correct answer:genetics
    • environment
    • lifestyle

  4. 4. True or false? There are more differences between organisms of the same species than there are between organisms of different species.

    • true
    • Correct answer:false

  5. 5. Which student has the correct definition of a species?

    • a black and white drawing of a boy's face with a bow on top of his hair and a smile on his faceJun: "A group of organisms living in the same habitat."
    • a black and white drawing of a child's head with a smile on it's face,Same: "A group of organisms with identical features."
    • Correct answer:a black and white drawing of a woman's head with a turban on top of her headAndeep: "A group of organisms that can produce fertile offspring."

What pupils see

The same lesson as a pupil sees it. You can set any section as work on its own.

  • IntroductionPrepare
  • Starter quizActivate · 6 questions
  • Lesson videoLearn
  • Exit quizCheck · 5 questions
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