b. resuilted in he emergence of Archaca. c. resulted in the emergence of Bacteri

Question

b. resuilted in he emergence of Archaca. c. resulted in the emergence of Bacteria. d. resulted in the emergence of Eukaryotes. 19. Identifying monophyletic groups is fundamental for the a. biological species concept. b. phylogenetic species concept. c. morphological species concept. d. recognition species concept. e. cohesion species concept. 20. Which of the following is not a life history characteristic? a. age of first reproduction b. life span c. prey size d. mode and frequency of reproduction e. fecundity 21·There are more terrestrial species than marine species because a. it started that way and there has always been a speciation rate bias b. This is false, in fact there are more marine species than terrestrial ones c. Marine species photosynthesize more efficiently, and therefore accumulate deleterious mutations at a faster rate. d temrestria divenity harply inereased when teresril plants incteased ther Ilaf vein densty 22. Antagonistic pleiotropy refers to the fact that a. some genes have a beneficial effect early in life but a detrimental effect late in litfe b. some genes have a detrimental effect early in life but a beneficial effect late in life c. some alleles have multiple, non-cumulative effects

Explanation / Answer

19. b) since monophyletic group of organisms from common ancestor which gives the concept of phylogenetic species.

20. d) mode and frequency of reproduction.

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