What characteristics separate algae from
a. protozoans and
b. plants?

Algae are different from protozoans in that they are photosynthetic and thus make their own food. Protozoa on the other hand are animal like and do not possess mechanisms for making their own food an so they feed on ready made food materials from their environment..

Algae are different from plants because they have no vascular tissue like that found in plants. They also lack roots, stems and leaves, which plants have. Examples of algae are seaweed, kelp, and brown, red and green algae.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.