In this field of sunflowers, variation exists. some flowers are tall, others short, and finally some plants are an intermediate height. the tallest plants shade the shorter; the taller plants are pollinated first. over time, we might expect this field of sunflowers to be mostly tall. according to this scenario, identify the type of reproduction and list the processes that aid in variation.

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 ?

Which of these is one of the nitrogenous bases in dna? a. proline b. leucine c. glycine d. thymine

Why zebra fish experience similar genetic disease as human