Variation Biology

What type of graph do we use for discontinuous variation?

• bell-shape

• Bar chart

• Line graph

• Scatter Graph

What shape graph do you see for many examples of continuous variation?

• A straight line downwards

• A straight line upwards

• A bell-shape

• A flat line

Student eye colour could be considered what type of data

• Discontinuous

• Independent

• Continuous

• Colours

In a town where white moths are very common, a new factory is built. The factory distributes lots of soot that coats the tree bark until the tree trunks look almost black. What will happen to the white moth population?

• It will increase

• It will decrease

• Over time, more white moths will be around

• None of these

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following statements is correct about continuous variation?

• An example is blood group

• It is influenced by genetic and environmental factors

• It is a qualitative variation

• The characteristics in this variation fall into distinct categories

Tags

NGSS.MS-LS1-5

The action that does not causes variation is

• the random fertilisation

• the separation of sister chromatids

• the crossing over

• the independent assortment of chromosomes

A pair of twins have different physical characteristics when they are raised in different families.

the statement shows that

• the genotype of an individual is determined by the environment.

• the phenotype of an individual is determined by the environment

• the genetic compositions of an individual can be altered by the environment

• an inherited character can be influenced by the environment

Tags

NGSS.MS-LS1-5

Which factor primarily influences continuous variation?

• Genetic factors only

• Environmental factors only

• Both genetic and environmental factors

• Random chance

Tags

NGSS.MS-LS1-5

Which is a characteristic of continuous variation?

• Traits fall into fixed categories

• Traits show a wide range of values

• Traits are not affected by the environment

• Traits are controlled only by genetics

Tags

NGSS.MS-LS4-4

What is the main source of genetic variation in populations?

• Mutations

• Environmental changes

• Diet

• Physical activity

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4