Which statement is true?
a. opinions can be scientifically tested.
b. scientific theories are absolute and cannot be changed.
c. scientists have learned all they’ll ever know about science.
d. facts can be scientifically tested.

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

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 the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.