Zoology quiz

More questions about Zoology

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1. 1 Easy

   Why did zebras evolve their distinct black-and-white stripes?

   Answer: To deter biting flies

   Why: Experiments show horseflies land far less frequently on striped surfaces than on solid black or white ones.

2. 2 Medium

   How long can it take a sloth to digest one meal?

   Answer: One month

   Why: A sloth climbs down to the forest floor only about once a week, and that single toilet trip can shed up to a third of its body weight.

3. 3 Hard

   How many separate brains does a medicinal leech possess?

   Answer: 32

   Why: The 32 are segmental ganglia: 21 sit in the midbody, four fuse at the front and seven at the tail, and each cluster can run its own segment.

4. 4 Easy

   Why do wild flamingos have bright pink feathers?

   Answer: Diet of shrimp and algae

   Why: Chicks hatch grey, and zoo flamingos fade to pale white over successive moults unless their feed is dosed with the pigment canthaxanthin.

5. 5 Medium

   In which part of its body is a shrimp's heart located?

   Answer: head

   Why: A shrimp's heart sits under the carapace of its fused head and thorax, and pumps copper-based hemolymph that turns blue with oxygen.

6. 6 Hard

   How does a mother platypus provide milk without having nipples?

   Answer: It seeps through her skin

   Why: Her milk holds a protein found only in monotremes that fights bacteria, likely protecting the young that lap it off her skin in the burrow.