The macro algae do not have,,orlike most multicellular land plants.

The macro algae do not have stomata, xylem or phloem like most multi cellular land plants.

Explanation:

Macro algae do not have roots, stem or leaves hence no stomata, xylem or phloem. Although they have chlorophyll and other photosynthetic pigments.

Macro algae grow on hard sedimentary rocks but not on mud as they do not have roots while all land plants grow on mud.

Macro algae also called seaweed which are multicellular and autotrophic ie they can perform photosynthesis.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.