All bacteria and viruses are unicellular, Euglena, Amoeba, Paramoecium are unicellular.
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Answer:
D. a red allele present on at least one of two homologous chromosomes;
D. unplanned ecosystem interactions
Explanation:
A dominant allele or trait would always mask the expression of a recessive trait when both are present in a pair. The only way a recessive trait can express itself is when it is in a homozygous state. Since red color is dominant over white color in the beetle species, the genotype of any red color species would have a red alelle present on at least one of two homologous chromosomes. For example, if red allele is represented by R and white allele is r, the genotype of a red nettle species would be RR or Rr.
In the second question concerning the most reason for concern that some scientists recommends caution be taken regarding genetically modified plants is that in the process of introducing new genes into a population, unforseen and unplanned disruption of the ecosystem may occur as a result of interaction with the ecosystem that these process and it's product may present.
The answer is Chordates
Chordates belong to the pylum Chordata of the Animal Kingdom.They have the following characteristics;
Lower vertebrates have a notochord which is a hollow nerve chord that is located dorsally of the animal while higher vertebrates have a vertebral column of bone and cartilage. They have a coelom which is a body cavity that differentiates higher vertebrates into organs and digestive tract.
