"If spinach leaves are given increased amounts of fertilizer, they will grow more with each increased dose of fertilizer" - what is the independent variable?

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. chinchilla x albino a) all chinchilla b) 1/2 chinchilla, 1/2 albino c) 3/4 chinchilla, 1/4 albino

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.