Keystone predators effect their habitat by keeping the population of animals down.
Answer:
both: soled at room temp, they are made of molten
sedimentary: are made of weathered pieces of rock, form above the surface
igneous: form in the earths crust, and the big definition
Explanation:
Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.
