The scientific names of two bears are given belou polar bear - Ursus maritimus American black bear - Ursus americanus a Explain why their second names are different. b Suggest why they share the same first name. c Explain why species need scientific names.

Insectivora is a taxonomic grouping that was used to describe insect-eating mammals like armadillos, hedgehogs, moles, and anteaters. The taxonomy of these animals has beea revised in recent years, and Insectivora is no longer widely accepted because this group of organisms lacks one common ancestor and is instead descended from several ancestors. Which term best describes Insectivora? A. Polyphyletic B. Monophyletic C. Haplophyletic D. Paraphyletic

Which species concept is based on reproductive isolation? Group of answer choices A. biological B. morphological C. ecological D. phylogenetic

According to Linneaus's system of binomial classification and Table 3.1 on page 88 of your textbook, a lynx could belong to the class including Select one: O a. coyotes, cows, and horses Ob. horses, frogs, and house cats c. cougars, goats, and trout d. horses, sharks, and spruce trees Match the term that best fits its description. ✔ Choose... number of individuals per unit area or volume a long rectangle along a linear line set up in your field study area of a determined size to sample a population any abiotic or biotic condition that limits the number of individuals in a population A controlled experiment is one in which all manipulated variables are kept constant. As part of a scientific study, a scientist will change only one manipulated variable at a time. Choose... all species have an equal chance to be represented in the study limiting factor transect quadrat density False True random sampling Choose... +