The base pairs in a DNA strand are held together with hydrogen bonds. If the two nitrogenous bases in each pair were held together with covalent bonds instead of hydrogen bonds, what effect would it have on the cell?

Twind is considered to be an abiotic factor because it.?

Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes