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SAI International School
Subject- Biology
Chapter- Heredity And Evolution

Subtopic- Evolution and Classification, Tracing Evolutionary
Relationships

Module-27
Home Assignment-I

Objective- MCQ
Homologous organs have
1. a. Same structure, same function
b. Different structure, different function
c. Same structure, different function
d. different structure, same function

2. A basket of vegetables contains carrot, potato, radish and tomato. Which of them
represent the correct homologous structures?
a. Carrot and potato
b. Carrot and tomato
c. Radish and carrot
d. Radish and potato
3. Select the correct statement
a. Tendril of a pea plant and phylloclade of Opuntia are homologous
b. Tendril of a pea plant and phylloclade of Opuntia are analogous
c. Wings of birds and limbs of lizards are analogous
d. Wings of bird and wings of bat are homologous
4. The organs which perform different functions but have the same basic structure are
called:
a. Vestigial organ
b. Analogous organs
c. Homologous organs
d. Analytic organs
5. Wings of an insect & a bird are example of
a. Analogous organs
b. Vestigial organs
c. Homologous organs
d. Analytic organs
6. Some dinosaurs had feathers although they could not fly but birds have feathers that
help them to fly. In the context of evolution this means that
a. Reptiles have evolved from birds
b. There is no evolutionary connection between reptiles and birds
c. Feathers are homologous structures in both the organisms
d. Birds have evolved from reptiles
7. The bones in the forelimbs of three mammals are shown at right. For these mammals,

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