Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

A honeybee worker is a ________.

  1. a. fertile female
  2. b. fertile male
  3. c. sterile female
  4. d. sterile male

Summary Introduction

Concept introduction: Altruism is a process when an organism behaves in a way that benefits others instead of being harmed or risking oneself. Eusocial animals are organisms that live in a multigenerational family group with a reproductive division of labor. Honeybees are the example of eusocial animals.


Reasons for correct statement:

Honeybees are eusocial species that belong to the order Hymenoptera. In this order, all workers are females. Workers have to maintain the hive, collect food, and defend the colony, and these are their major work. A female’s diet as a larva determines whether she becomes a queen or a worker. A larva meant to be a queen eats only royal jelly, a special glandular secretion.  Larvae that are meant for a worker eat lesser amount of royal jelly, pollen, and honey. Constituents of pollen and honey cause epigenetic changes that result in worker phenotype.

Option b. is given as “sterile female”. Workers are females that are not sexually mature. Queen is only dominant, adult female that secretes a pheromone that keeps all other females in the colony sterile. Males are produced seasonally and function only during mating...

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