Question

Why do fireflies glow at night?
A. Fireflies contain an organic compound.
B. Chemical reaction involves emission of visible light.
C. Fireflies produce two chemicals which mix with each other and oxygen.
D. All of the above.

Answer 1

Hint: We know that fireflies glow at night. This is because of a chemical cause or chemical action which involves emission of light.

Complete-step- by- step answer:
a)We know that fireflies produce a chemical reaction inside their bodies that allows them to light up.
Actually fireflies store a protein (luciferin), which is an organic compound. This type of light production is called bioluminescence.
b) When oxygen combines with calcium, adenosine triphosphate (ATP) and the chemical luciferin in the presence of luciferase, a bioluminescent enzyme to form a new substance (oxyluciferin) along with the evolution of energy in the form of light.
c) Some fireflies lay their eggs in rotten logs and brush on the forest floor, and the larvae feast on the slugs, snails, and worms that this type of damp habitat attracts them to forests.
d) You can try to create more habitat for firefly larvae by letting some brush and logs accumulate under the trees in your yard.

So, from the above explanation we can say that all options are correct. Then the answer is “D”.

Note: Both young and adult fireflies feed on snails, slugs, worms and other soft-bodied insects including the larva of other bugs like mosquitoes. Some firefly adults don't feed while others eat pollen or nectar and are therefore considered a pollinator. Firefly adults live for 2 months after emerging from their pupal case.