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the number, position, and shape of the bones most likely indicates that they may have

a. developed in a common environment
b. developed from the same earlier species
c. identical genetic makeup
d. identical methods of obtaining food
8. More closely two organisms are related means that
a. they will have different ancestors
b. they will have same ancestor
c. they will have a common ancestor
d. they will not have any ancestor

SUBJECTIVE

Q. Questions- Easy Marks Level
NO
1. What do you mean by Characteristics? 1 E

2. List two tools used to study evolutionary relationships. 1 E
3. a) How do homologous organs provide evidence in support of 3 AV
evolution?
b) How do analogous organs provide evidence in favour of evolution?
4. a) Distinguish between analogous and homologous organs. 3 AV
b) Identify the analogous and homologous amongst the following:
Wings of an insect, wings of bat, forelimbs of frog, forelimbs of
humans.
5. “Evolution and classification of organisms are interlinked”. Give 3 D
reasons to justify the statement.

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