Variation Biology

What type of variation shows a gradual range of differences?

• Discontinuous

• Continuous

• Fixed

• Unchanging

Why is blood group an example of discontinuous variation?

• It shows a range of values

• It falls into distinct categories with no overlap

• It is affected by the environment

• It changes over time

Which of the following is an example of continuous variation?

• Ability to roll the tongue

• Blood group

• Height in humans

• Number of fingers

Tags

NGSS.MS-LS4-4

Which of these is most likely an example of environmental variation?

• Scar on the skin

• Blood group

• Freckles

• Fingerprints

Tags

NGSS.MS-LS1-5

What causes discontinuous variation?

• Only environmental factors

• Genetic differences

• A mix of genetics and environment

• Random changes

Tags

NGSS.MS-LS4-4

Why do identical twins sometimes look slightly different?

• They have different genes

• Environmental factors influence their traits

• Mutations make them different

• One has inherited more genes than the other

Tags

NGSS.MS-LS1-5

Which of the following is not an inherited trait?

• Blood group

• Eye color

• Height

• Language spoken

Tags

NGSS.MS-LS4-4

Which type of variation contributes most to evolution?

• Continuous

• Discontinuous

• Genetic

• Random

Tags

NGSS.MS-LS4-4

What happens when a mutation in DNA occurs?

• A new trait may appear

• Traits remain constant

• Environment becomes irrelevant

• Evolution stops

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Which statement is true about environmental variation?

• It is always inherited

• It does not affect evolution

• It can influence traits like height and weight

• It is caused by genetic changes

Tags

NGSS.MS-LS1-5