Life Science Chapter 1 Lesson 2 Content Practice A

binomial nomenclature	cladogram	dichotomous key	domains	genus
kingdoms	scientific name	species	systematics

1.  Based on similar structures, Linnaeus classified all organisms into two
                                                     .

2.  As more discoveries were made, Whittaker proposed classifying organisms into five
                                                     .

3.  The current system of classifying organisms uses molecular analysis and is called
                                                     .

4.  The current system classifies organisms into three                                                and six
                                                     .

5.  Scientists still use Linnaeus’s naming system called                                              to give
each species a name.

6.  Ursus arctos is the                                                 for a brown bear.

7.  Ursus is the brown bear’s                                             .

8.  The word arctos is the brown bear’s                                       name.

9.  A                                                is a series of questions that helps you identify an
unknown organism.

10.  A branched diagram called a                                             can help you understand the
relationships among organisms.