Question 1

Which of the following best describes the difference between the lytic and lysogenic cycles in viral replication?

Accepted Answer

The lytic cycle results in the destruction of the host cell, while the lysogenic cycle allows the viral genome to persist in the host without immediate destruction.

Question 2

A retrovirus differs from most other viruses because it:

Accepted Answer

Uses reverse transcriptase to synthesize DNA from its RNA genome.

Question 3

Which of the following is an example of convergent evolution?

Accepted Answer

The development of wings in bats and birds, which evolved independently for flight.

Question 4

Which statement correctly distinguishes between homologous and analogous structures?

Accepted Answer

Analogous structures have similar functions but different evolutionary origins, while homologous structures share a common evolutionary origin.

Question 5

Which process allows bacteria to acquire new genetic material via a virus?

Accepted Answer

Transduction

Question 6

Which of the following best describes the role of endosymbiosis in the evolution of eukaryotic cells?

Accepted Answer

It describes how mitochondria and chloroplasts originated from free-living prokaryotes engulfed by ancestral eukaryotic cells.

Question 7

Which of the following protists is responsible for causing malaria in humans?

Accepted Answer

Plasmodium

Question 8

What adaptation allowed early plants to colonize land and reduce water loss?

Accepted Answer

Formation of a waxy cuticle on leaves and stems

Question 9

In the alternation of generations in plants, which phase is haploid and produces gametes?

Accepted Answer

Gametophyte

Question 10

Which of the following best describes the function of xylem in vascular plants?

Accepted Answer

Transports water and minerals from roots to shoots

Question 11

Which structure is unique to fungi and is responsible for nutrient absorption?

Accepted Answer

Hyphae

Question 12

Which event is known as the 'Cambrian explosion' and why is it significant in evolutionary history?

Accepted Answer

A rapid diversification of animal body plans and the emergence of most major animal phyla

Question 13

Which of the following is a key difference between protostomes and deuterostomes?

Accepted Answer

Protostomes develop the mouth from the blastopore, while deuterostomes develop the anus from the blastopore.

Question 14

Which of the following is NOT a characteristic shared by all chordates?

Accepted Answer

Exoskeleton made of chitin

Question 15

Which adaptation was crucial for the movement of vertebrates onto land?

Accepted Answer

Evolution of limbs with digits

Question 16

Which of the following best explains why Earth experiences seasons?

Accepted Answer

Earth's axis is tilted relative to its orbital plane around the Sun.

Question 17

Which of the following is an example of altruism explained by natural selection?

Accepted Answer

A worker bee sacrificing itself to protect the hive, increasing the survival of its relatives

Question 18

Which tissue type is characterized by tightly packed cells that form continuous sheets and function in protection, secretion, and absorption?

Accepted Answer

Epithelial tissue

Question 19

Which equation correctly represents the relationship between metabolic rate (MR), body mass (M), and the scaling exponent (b) in animals?

Accepted Answer

$$MR = aM^b$$

Question 20

Which of the following best describes the difference between Standard Metabolic Rate (SMR) and Basal Metabolic Rate (BMR)?

Accepted Answer

BMR is measured in endotherms under specific conditions, while SMR is measured in ectotherms under similar conditions.

Comprehensive Study Notes: Viruses, Prokaryotes, Protists, Plants, Fungi, Animal Evolution, and Ecology

Study Guide - Practice Questions

Study Guide - Flashcards