The theory of evolution states that all living things developed from simpler organisms. Why is this statement known as a theory? 1. There is no evidence for the idea.
2. Scientists cannot agree about the idea.
3. The idea is not open to doubt or argument.
4. Scientists may modify the idea as they gather more evidence.

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 ?

Dna and rna share a number of similarities,but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.