The organisms "Cicada, Froghopper and Pond skater" are :
- A.Birds
- B.Fish
- C.Insects
- D.Reptiles
Correct answer
Explanation
The correct answer is C, Insects. Cicadas, froghoppers and pond skaters all have three body parts, six legs and a pair of antennae, the marks of the class Insecta.
All three belong to the insect order Hemiptera, the true bugs, which have piercing and sucking mouthparts. Cicadas are known for the loud songs of the males, made by drum-like organs called tymbals, and some species spend years underground as nymphs. Froghoppers, also called spittlebugs, are small jumping insects whose young hide inside a frothy mass on plant stems. Pond skaters, or water striders, glide on the surface of still water, held up by surface tension and fine water-repelling hairs on their long legs.
A is wrong: birds are feathered vertebrates; none of these has feathers or a backbone.
B is wrong: fish breathe with gills and live under water, while pond skaters only move on its surface.
D is wrong: reptiles are scaly vertebrates such as lizards and snakes, not small six-legged animals.
Exam tip: cicada, froghopper, pond skater = insects (Hemiptera); pond skater shows surface tension.
Practice Questions
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- A.haploid zygote
- B.diploid zygote
- C.non-motile male gametes
- D.motile male gametes
Show answer
Syngamy is the fusion of a male and a female gamete, and since each gamete is haploid, their union gives a diploid zygote.
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- A.One
- B.Two
- C.Three
- D.Four
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- A.10⁻⁷ cm
- B.10⁻⁶ cm
- C.10⁻⁴ cm
- D.10⁻³ cm
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Read the full explanation →Which of the following is the general formula for saturated hydrocarbons?
- A.CₙH₂ₙ₊₂
- B.CₙH₂ₙ₋₂
- C.CₙH₂ₙ₊₁
- D.CₙH₂ₙ₋₁
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- A.Cholera
- B.Malaria
- C.Smallpox
- D.Elephantiasis
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