Question

6) Which of the following is (are) true of natural selection? (1 pts) It requires genetic variation It results in descent with modifications It involves differential reproductive success It requires genetic variation, results in descent with modifications, andinvolves differential reproductive success (pts) 7) Cotton topped tamarins are small primates with tufts of long white hair on their heads. While studying these creatures, you notice that males with longer hair get more opportunities to mate and father more offspring. To test the hypothesis that having longer hair is adaptive in these males, you should __ test whether other traits in these males are also adaptive look for evidence of hair in ancestors of tamarins determine if hair length is heritable test whether males with shaved heads are still able to mate 8) The best experimental design pts) includes a large sample size includes a control aters only one condition between the controls and the experimental condition includes a large sample size and a control and alters only one condition between the controls and the experimental condition In the process of science, which of these is tested? peso a result an observation a hypothesis a control group 10) All of the following are part of a prokaryotic cell DCEPT peso plasma membrane endoplasmic reticulum ribosomes 11) naplant DNA may be found

Answer 1

Ans-6) It requires genetic variation 9 sesults in descent with modifications & involves differential reproductive Success (Natural selection is the differential survival & reproduction of individuals due to differences in phenotype) In this process Organisms adapts to its environment through selectively reproducing changes in its genotype) Ans-7) Determine if hair length is heritable Hair gsowth is a heridatory factor cans-8) The best experimental design includes a Large Sample size & alters only one condition between the controls & the experimental condition (experimental design is a method of research in which a controlled experimental factor is subjected

to special treatment for purposes of comparison with a factor kept constant. Ans. a) Hypothesis Hypothesis is a proposed Scientific explanation for a set of observation. Ans-10) endoplasmic reticulum (Prokaryotic cell - It is a cell that lacks a nucleus & other membrane bound organelle , includes achaca & bacteria - Eukaryotic cell: A cell containing a nucleus. e other membrane bound organelles.