Question

to ikely s seeb of alleles into a population 12) Which of the folhowing a 8) wings of a butterly and wings o ivings of a dragoni due bo a in allelic frequencies due to homologous? AJ the mouth of a mosguito of a hummingbird C) changes in the gene pool of ation due to differential ty and the wings parrow C) the D) chance changes in the gene 5) the loss of alleles trom a population of a hawl D) the forelimb of a dog and the small population due to emigration of a cat of a cat 13) Plants first moved onto l A) 475 million C) 1.2 billion E) the forelimb of a dog and the hindlimb 9) Uranium-235, with a half-life of 13,0 years decays to lead-207, 1f a rock sa determined to have one-eighth of the uranium-235 content it had when it the age of the rock sample can be est be à land by at least years ago years old. B) 3.5 billion A) 178 billion B) 1.4 billion C) 713 million D) 21 billion E) 178 million D) 65 million E) 45 billion 14) When brought together in a zoo. two species are capable of mating and producing two distinct species? 10) The presence of gills in both fish and h offspring. Why may they still be considered fertile embryos is an example of A) analogy B) genetic drift C) homology A) In the wild, members of one species prey upon members of the other species D) convergent evolution B) wild population, of the two species E) divergent evolution have different geegraphic distributions C) The two species look very different. D) The species are normally found in 11) Which of these primate groups is most closely related to hominids? different habitats. A) lorises B) New World monkeys C) lemurs D) apes E) Old World monkeys E) Zoos are not natural environments 15) Which hominid appears to have been the firs to use simple stone tools? A) Australopithecus B) Homo sapiens C) Homo erectus D) Homo habilis E) Ardipithecs

Answer 1

Genetic drift

Ans : D changes in the gene pool of small population can cause genetic drift because small population have less variation seen and they remain stable following Hardy Weinberg equilibrium

Gills in fish and humans

Ans: C

Fish embryo have gills for respiration and human embryo have gills which later form the pharynx and neck region.

Therefore it's homology

Similar structure different function.

Hominids resemble

Ans: apes

They are very closely related to apes and are in the family of primates

Homologous

Ans : D

Homology means similarly between different animals because they have a common ancestor

Therefore cat and dog having similar structure have different function

Cats use legs for climbing

Dogs use legs for running

Two species are able to reproduce because

ANS: the species are found in different habitats

Depending upon the climate, temperature they are found at different geographic areas

Stone age man was

ANS : Homo erectus