Are viruses alive? the scientific debate continues. viruses exhibit some characteristics of life, but others are missing. the most obvious reason why scientists still refer to viruses as non-living is that they a) do not change over time. b) do not contain any genetic material. c) are much smaller than anything alive. d) are not composed of one or more cells.

D. Are not composed of one or more cells

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids (lysosomal lipase). the enzymes responsible for this hydrolysis require an acidic environment for optimal activity. hope i !