Van Helmont did experiments on plants. According to his
experiments, where do plants get
most of their mass?

A. Water

B. The atmosphere

Please help. 10 points

What is a codon and where is it found

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?