Will mark ! define tissue. use this word in a sentence that describes how organisms accomplish tasks.

Environmental differences within ecosystems are generally caused by

I’m stuck on this question cuz i’m stupid sksksksk

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 ?