Viruses are classified as non-living. Although they have DNA or RNA as genetic information, a protein coat, and some, a lipidic envelope, they do not have the machinery to multiply on their own and therefore are non-living. <span>A </span>virus<span> is simply an </span>infectious agent<span> that, through different ways, many times only by releasing its genetic information inside the cell, </span>replicates<span> using other living-cells machinery</span><span>. Viruses are able to infect any type of cell.</span>
Answer:
The correct answer is option c. "old layers of xylem and phloem".
Explanation:
Wood is one important good used for construction obtained from the main substance of the outer layer of the trunk or branches of a tree. Biologically, the outer layer of the trunk of a tree is comprised of the old layers of xylem and phloem, which are dead cells that were part of the heartwood or the centre of the tree. These old layers of xylem and phloem form the outer bark structure of the tree.
I believe the type of nutrition that is believed to have come first is Heterotrophic mode of nutrition. Heterotrophic mode of nutrition is a type of nutrition in which animals or organisms depend upon other organisms to survive. All animals and non green plants are heterotrophic organisms. These organisms have to acquire and take in all the organic substances they need for their survival.
The sugar maltose would be digested by the enzyme sucrase. True
