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1. Write the basic function of male and female reproductive structures of honeybees.

2. Which class of honeybee can be developed from an unfertilized egg?

3. Write and list the reproductive structure and function of grasshoppers.

4. Write the similarities and differences between the two types of metamorphosis and provide examples.

5. Which chemical substances control metamorphosis? How?

6. Write and list the reproductive structure and function of frogs.

7. Investigate the disadvantages of external fertilization in frogs. How do they overcome this disadvantage? What is the advantage of laying a large number of eggs?

8. What is the function of the jelly-like substance in frogs?

9. Do you think that all of the eggs of a crocodile can hatch and survive? If not, why?

10. What advancements or adaptations do crocodiles' reproductive systems have over frogs? Draw the life cycle.

11. How does the male bird transfer sperm to the female for fertilization to occur?

12. What is the significance of the difference between monogamous and polygamous species in birds?

13. What factors determine the number of eggs laid by birds? Why do hens lay eggs without a rooster? Do these eggs result in chickens?

14. Why are eggs laid in so many different colors? What are camouflaged eggs and how do they help to protect the eggs?

15. What are chordates? To which phylum, class, and kingdom do they belong?

Answer :

Final answer:

This detailed answer gives a brief overview of various aspects of the reproductive systems and behaviors of several organisms, including honeybees, grasshoppers, frogs, and birds. It also touches on the concepts of metamorphosis, external fertilization, egg protection and Chordates.

Explanation:

The reproductive function of the male honeybee, or drone, is to fertilize the queen's eggs. The queen's function is to lay eggs. Drones are developed from unfertilized eggs in a process known as parthenogenesis.

Grasshoppers have separate sexes. The male has testes that produce sperm and the female ovary produces eggs.

Metamorphosis, the transition from immature to mature, can be complete (butterfly) or incomplete (grasshopper). Hormones like ecdysone and juvenile hormone control this process.

Frogs are amphibians with externally fertilized eggs. The disadvantage of external fertilization is susceptibility to environmental changes and predators but frogs counter this by laying many eggs.

The jelly-like substance in frog eggs provides protection and nutrition. Not all crocodile eggs hatch due to environmental factors and predation.

Male birds transfer sperm during copulation, and monogamous species show pair bonding while polygamous species have a single male mating with multiple females.

Hens can lay unfertilized eggs without a rooster but these won't hatch. Lastly, the colour and camouflaging of eggs aid in their protection. Chordates belong to the kingdom Animalia, phylum Chordata, and exhibit a notochord at some stage in their development.

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