SB3k Variation

Question 1

acquired characteristic

Answer 1

a characteristic that can change during life, due to a change in the environment

Question 2

continuous variation

Answer 2

continuous variation is when differences in a characteristic are continuous (length, mass, time)

Question 3

discontinuous variation

Answer 3

discontinuous variation is when differences in a characteristic are discontinuous (shoe size, blood group)

Question 4

environmental variation

Answer 4

differences between organisms caused by environment factors, such as heat, light, damage

Question 5

genetic variation

Answer 5

differences between organisms caused by differences in the alleles they inherit from their parents, or differences in genes caused by mutation

Question 6

mean

Answer 6

the average of group of data

Question 7

median

Answer 7

middle value in a data set

Question 8

mode

Answer 8

most common value in a data set

Question 9

normal distribution

Answer 9

when many individuals have a middle value, with fewer individuals having greater or lesser values, this data forms a “bell” shape on charts and graphs

Question 10

range

Answer 10

the difference between the highest and lowest values in a set of data