Smoking reduces the surfactant layer in the alveoli. This would cause which of the following to occur? (2 points) A. Depressed macrophage activity

B. Destroyed red blood cells

C. Reduced ability of gases to diffuse through the water layer

D. Reduced ability of gases to enter or exit the alveolar space

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.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.