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9) Natural selection occurs because of all of the following EXCEPT – *
A.)some traits provide an advantage to organisms
B)organisms in a population show variation
C)some populations are related to others
D) better-adapted organisms can survive longer and produce more offspring

10) In order for natural selection to have produced the long necks of giraffes, which of the following must have been true over the evolutionary history of giraffes? *

A)All giraffes, regardless of neck length, had an equal chance of survival
B)The length of necks in giraffe offspring was always longer than both parents
C)In every generation, the length of giraffes' necks showed variation
D)Abundant resources insured that competition among giraffes was limited

The collared lizard is a species found in the desert southwest. male collared lizards show considerable color variation, ranging from brightly colored to a very dull pattern. your goal is to determine the function, if any, of male color patterns in collared lizards, using the scientific method. your tentative explanation is that male color plays a role in attracting females for mating purposes. you predict that females will preferentially choose brightly colored males over dull-colored ones. to test this prediction, you observed the interactions of female collared lizards with their male counterparts. you selected males that were the same age and size, and that differed only in their coloration pattern. you placed equal numbers of the two types of male lizards, bright and dull, in aquariums, along with one female lizard per aquarium. out of 350 aquariums observed, the female chose to mate with the brightly colored male 277 times, and the dull-colored male 70 times. in 3 instances, the females did not mate with either type. create a bar graph of your data, plotting the type of male (dull or brightly colored) on the x-axis. on the y-axis, plot the frequency with which each type of male was chosen by females. using this graph, answer the following question(s). is it reasonable to conclude (i. e., is it supported by the data) that female collared lizards prefer more brightly colored male lizards over dull-colored males?

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

What amino acid is coded for by this sequence after the mutation