Dissimilar than scientists thought
Answer:
They are organisms (individual organisms called "plankters") that live in large bodies of water.
Explanation:
They reside in large bodies of water (oceans, lakes, etc). They are usually abundant in surface waters because all ecosystems of plankton live off input of solar energy.
Answer:
People drink water that has been contaminated by animal feces
Explanation:
<span>Genetic variation can be caused by mutation (which can
create entirely new alleles in a population), random mating, random
fertilization, and recombination between homologous chromosomes during
meiosis (which reshuffles alleles within an organism's offspring)</span>
Genetic Diversity in Plants. Genetic diversity is of fundamental importance in the continuity of a species as it provides the necessary adaptation to the prevailing biotic and abiotic environmental conditions, and enables change in the genetic composition to cope with changes in the environment
