Starter quiz
True or false? A tattoo can be inherited.- True
- False ✓
- True or false? Variation can be passed on to offspring if it is only caused by genetics.
- True ✓
- False
- 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.
- They can only reproduce to make offspring of the same species. ✓
- They can only reproduce to make infertile offspring.
-
- Which scientific word is used to refer to differences between organisms of the same species?
- variation ✓
- reproduction
- diversity
- alternatives
- competition
-
- Which factors will cause variation between animals of the same species?
- The environmental conditions the animals live in. ✓
- Injuries to the animals. ✓
- Similarities between the animals.
- The animals' genomes. ✓
- The number of animals living in the habitat.
-
Which statement about baby orangutans is true?- A baby orangutan only looks like its mother.
- A baby orangutan only looks like its father.
- A baby orangutan looks like both of its parents. ✓
-
Exit quiz
A broken bone is an example of variation caused by …- genetics.
- environment.
- lifestyle. ✓
-
__________ of the animal’s features are caused by genetic information in its cells.- All
- Some ✓
- None
-
Dimples in cheeks are an example of variation caused only by …- genetics ✓
- environment
- lifestyle
-
- True or false? There are more differences between organisms of the same species than there are between organisms of different species.
- True
- False ✓
- Which student has the correct definition of a species?
Jun: "A group of organisms living in the same habitat."
Same: "A group of organisms with identical features."
Andeep: "A group of organisms that can produce fertile offspring." ✓
- Match the type of variation with its description.
- genetic⇔caused by instructions in genes ✓
- environment⇔caused by external factors like food availability and sunlight ✓
- lifestyle⇔caused by choices made by the organism ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- 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).
Common misconception
All members of a species (especially non-human species) look exactly the same.
The lesson explores examples of variation between members of the same species, and causes of these variations.
Keywords
Species - a group of organisms that can reproduce to produce fertile offspring
Variation - differences between members of the same species
Environment - the external space around an organism that influences it
Lifestyle - the choices an individual makes as to how they live their life
Genetic - related to the genetic material (DNA) and genes that an individual has
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