Three requirements of an efficient respiratory system

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

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 chinchilla 1/2 agouti, 1/2 chinchilla 3/4 agouti, 1/4 chinchilla all chinchilla