Predation can increase biodiversity by
a. reducing the numbers of overcrowding prey species.
b. increasing competition for resources among prey species.
c. increasing the number of pollinators in an area.
d. none of the above

i am pretty sure its a

Explanation: its definitely not b because competition can negatively impact biodiversity. c does not make sense for a predator. but it should be a since that logically makes the most sense.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.