Animal Life Cycles quiz

More questions about Animal Life Cycles

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1. 1 Easy

   Which sea creature's mother dies soon after her eggs hatch?

   Answer: Octopus

   Why: In a 1977 study, brooding octopus mothers whose optic glands were removed started eating again and lived months longer.

2. 2 Medium

   What decides whether a sea turtle hatches male or female?

   Answer: Nest temperature

   Why: Warm sand produces mostly females and cool sand mostly males, with an even split near 29 °C.

3. 3 Hard

   What insects molt again after growing working wings?

   Answer: Mayflies

   Why: Their mouthparts no longer work by then, so adult mayflies cannot eat at all.

4. 4 Easy

   Where do adult salmon travel to lay their eggs?

   Answer: Freshwater rivers

   Why: Salmon find their way back to their home stream primarily by following familiar chemical scents in the water.

5. 5 Medium

   Which small mammal is born furry with its eyes open?

   Answer: Hare

   Why: Baby rabbits arrive naked and blind in a fur-lined nest, while leverets are born furred in a shallow hollow above ground.

6. 6 Hard

   What does a young silkworm larva become without juvenile hormone?

   Answer: A miniature pupa

   Why: Ecdysone, a steroid, triggers every molt, while juvenile hormone decides whether a larva, a pupa or an adult comes out.