Which of the following is a false statement about reactions? a. mass can’t be created or destroyed in a chemical reaction b. compounds that form have different properties than the ‘old’ reactants. c. atoms are rearranged in a reaction and joincto form new molecules d. when a reaction gets cold, that means energy is destroyed

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Describe how a student should adjust the microscope to see the cells on a slide more clearly?