Question 1

Which of the following is NOT a defining characteristic of social insect colonies?

Accepted Answer

Solitary foraging behavior

Question 2

In Hymenoptera, what is the genetic relationship ($$r) $$between two full sisters, assuming the queen mates with only one male?

Accepted Answer

$$r = 0.75$$

Question 3

Which evolutionary route describes unrelated females joining forces to found a nest, often resulting in dominance through aggression?

Accepted Answer

Parasocial route

Question 4

Why does haplodiploidy in Hymenoptera predispose these insects to the evolution of sociality?

Accepted Answer

It allows for a higher relatedness among sisters ($$r = 0.75$$), increasing the benefits of helping relatives.

Question 5

A honeybee worker is observed performing the waggle dance. What information is she communicating to her nestmates?

Accepted Answer

The distance, direction, and quality of a nectar source

Question 6

Which of the following best describes the division of labor in a honeybee colony?

Accepted Answer

Workers specialize in tasks based on age (age polyethism).

Question 7

What is the fate of drones in a honeybee colony during winter?

Accepted Answer

They are forced out of the hive and left to die due to scarce resources.

Question 8

Which of the following is a real-world example of cooperative brood care in social insects?

Accepted Answer

Worker bees feeding larvae in the hive

Question 9

If a honeybee queen lays 2,000 eggs per day, and each egg has a 50% chance of being fertilized, how many female (diploid) offspring are expected per day?

Accepted Answer

$$2,000 	imes 0.5 = 1,000$$

Question 10

Which order includes termites, a group that independently evolved sociality?

Accepted Answer

Order Isoptera

Question 11

What is the primary function of worker bees in a honeybee colony?

Accepted Answer

Guarding the hive, foraging, and caring for brood

Question 12

Which of the following statements about the genetic structure of social insect colonies is correct?

Accepted Answer

Workers are more closely related to their sisters than to their own offspring in haplodiploid systems.

Question 13

A researcher observes that in a certain wasp species, several unrelated females cooperate to start a nest, but only one becomes the main egg-layer. Which evolutionary route does this scenario illustrate?

Accepted Answer

Parasocial route

Question 14

Which of the following best explains why social insect colonies are considered 'superorganisms'?

Accepted Answer

The colony functions as a single unit with division of labor and cooperative care.

Question 15

If a worker bee is related to her brother by $$r = 0.25$$, what is the genetic explanation for this value in haplodiploid systems?

Accepted Answer

She shares one quarter of her genes with her brother because he is haploid and she is diploid.

Question 16

Which of the following is NOT a benefit of sociality in insects?

Accepted Answer

Guaranteed reproductive success for all individuals

Question 17

A honeybee colony regulates its internal temperature to ensure brood survival. Which concept does this illustrate?

Accepted Answer

Homeostasis at the colony level

Question 18

Which caste in a honeybee colony is responsible for reproduction?

Accepted Answer

Queen bee

Question 19

What is the main evolutionary advantage of workers being sterile in social insect colonies?

Accepted Answer

It increases the inclusive fitness of workers by helping raise close relatives.

Question 20

Which of the following is a real-life application of understanding social insect communication for agriculture?

Accepted Answer

Using knowledge of the waggle dance to improve crop pollination by managing hive placement.

Social Insects: Evolution, Genetics, and Colony Organization

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