The basic unit of life is a (n)

atom

compound

molecule

cell

Which layer of the earth shell of an egg

A human embryo doesn't need the kind of yolk that is present in a chick embryo. Explain. A. It doesn't need any nourishment. B. It gets its nourishment from its mother. C. It can synthesize its own food.

At which map location does polaris appear the highest in the nighttime sky

Some chains of carbon atoms bend when the carbon atoms:

40 percent of all american families have at least one companion animal?

Just so everyone knows this is for science! Sublimation happens to a solid when ... A. the energy increases and the particles move so fast they turn to gas B. the energy decreases and the particles move so slowly they fall C.

The energy is stored in chemical bonds between? A. nucleotide B. Ribose C. Phosphate D. Oxygen

Why is glycolysis considered to be one of the first metabolic pathways to have evolved?

Define of following terms: Autotroph, Heterotrophs

When stopped at railroad crossing with multiple tracks cross?