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Biology Quiz on Evolution and Circulation

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Biology Quiz on Evolution and Circulation

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Questions and Answers

What is an example of directional selection?

The prevalence of dark-colored moths in a polluted environment (correct)

Increase in the frequency of a harmful trait in a population

A population developing different traits due to geographical barriers

Stabilization of a trait amidst a constant environment

Which mechanism describes how two species evolve in response to each other?

Convergent evolution

Divergent evolution

Co-evolution (correct)

Adaptive radiation

What distinguishes pulmonary circulation from systemic circulation?

Systemic circulation returns deoxygenated blood to the heart

Pulmonary circulation is responsible for gas exchange in the lungs (correct)

Systemic circulation transports blood between the heart and lungs

Pulmonary circulation delivers oxygenated blood to body tissues

Which of the following organisms exhibits asymmetrical symmetry?

Sponges Signup and view all the answers

What happens to a population during the Bottleneck effect?

The population experiences a significant reduction in size, impacting genetic variability Signup and view all the answers

What is the primary function of the valves in the heart?

Prevent the backflow of blood Signup and view all the answers

During which process does peristalsis occur?

Movement of food through the digestive tract Signup and view all the answers

Which of the following best describes the process of alternation of generations in plants?

A reproductive cycle including both haploid and diploid phases Signup and view all the answers

What are the two events during meiosis that contribute to genetic diversity?

Independent assortment and crossing over Signup and view all the answers

Where does primary growth occur in plants?

In the tips of roots and shoots Signup and view all the answers

What is the main difference between incomplete dominance and complete dominance?

Incomplete dominance results in a blending of traits, while complete dominance shows one trait fully expressed over another. Signup and view all the answers

During which phase of meiosis I do homologous chromosomes separate?

Anaphase I Signup and view all the answers

Which genetic disorder is characterized by an extra chromosome 21?

Down's syndrome Signup and view all the answers

What distinguishes spermatogenesis from oogenesis?

Spermatogenesis results in four viable sperm cells, while oogenesis results in one viable egg and polar bodies. Signup and view all the answers

Which of the following isolation mechanisms is an example of pre-zygotic isolation?

Temporal isolation Signup and view all the answers