36) Which of the following does not relate to the phenetic species concept? a. b

Question

36) Which of the following does not relate to the phenetic species concept? a. b. c. d. e. Provides a hierarchical classification Organisms assigned to categories based on diagnostic characteristics Relies on analysis of DNA sequences Organisms are given binomial names All of the above 38) Professor Carl Woese proposed the three-domain system for the classification of all living things that is based on differences inthe of organisms a. cell morphologies b. rRNA sequences. C. Gram stain reactions. d. phenotypic traits. 40) A prokaryotic species is defined as a a. b. c. d. population of cells with similar characteristics population of cells with different characteristics. group of closely related organisms that can interbreed group of organisms that are not composed of cells. 41) Historically living things were classified into five kingdoms (Monera, Protista, Fungi, Plantae and Animalia). Nowadays, living things are classified into domains. How many are there? b. 4 C. d. 2 42) Which of the following do NOT fix atmospheric nitrogen? a. cyanobacteria b. lichens C. mycorrhizae d. rhizobia

Explanation / Answer

1- E The phenetic or morphological species of concept says that a species is a set of organisms that are phenotypically similar and that look different from other sets of organism .

2- B Woese argued that on basis of 16s rRNA genes they can be divided into three domains.

3- A Population with similar characteristicks . They have an outer cell wall and inner primitive nucleoid.

4- C Three domains

5- B lichens ...Its the rhizobium that fixes atmospheric nitrogen for lichens ( peas , alfafa lichens ).

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