(a) What is the reason for different types of silk? (b) Why are eggs laid by female silk moths warmed?
(c) After how many days, caterpillars stop eating and start to spin cocoons?
(To be noted- a b and c are question not option it is subjective question)

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

Construct an explanation about the function of mitosis for multicellular organisms

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.