Many sponges can reproduce asexually. Ladybugs, on the other hand, reproduce sexually. When small bits of a sponge are broken off—often by currents or by predators—they can float to new regions and regenerate as new sponges. A ladybug must find a mate before it can reproduce.

One disadvantage of the sponge's method of reproduction is that
A.
its offspring have little genetic diversity.
B.
it requires more energy.
C.
its offspring have greater genetic diversity.
D.
it must devote a greater portion of its life cycle to reproduction.

A. its offspring have little genetic diversity.

Explanation:

Unlike the ladybug who needs a mate, the sponge reproduces by itself. This means the new sponge offspring usually do not differ much from the parent, as most of its genes will come from there and will not come from two parents 'mixed' together. This means not much varieties of sponge offspring would come from the same parent.

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.