12) Which of the following statements is not consistent with Darwin's theory of natural selection? A) Individuals in a population exhibit variations, some of which are passed from parents to offspring. B) Individual organisms experience genetic change during their life spans to better fit their environment. C) Factors in the environment result in some organisms having better reproductive success than others. D) Natural selection can lead to the appearance of new species.
13) Which of the following statements about evolution is true? A) Individuals evolve within the span of their own lifetimes. B) Organisms evolve structures in response to needs. C) Evolution is deliberate and purposeful. D) Evolution can result in adaptations.
14) Which of the following statements about ecosystems is false? A) Energy cycles from organisms through the atmosphere and back to the organisms. B) Carbon cycles from the atmosphere through organisms and back to the atmosphere. C) Energy of sunlight is converted to energy stored in sugar molecules. D) Most energy that enters the ecosystem leaves the system as heat.
12) Which of the following statements is not consistent with Darwin's theory of natural selection? A) Individuals in a population exhibit variations, some of which are passed from parents to offspring. B) Individual organisms experience genetic change during their life spans to better fit their environment. C) Factors in the environment result in some organisms having better reproductive success than others. D) Natural selection can lead to the appearance of new species.
13) Which of the following statements about evolution is true? A) Individuals evolve within the span of their own lifetimes. B) Organisms evolve structures in response to needs. C) Evolution is deliberate and purposeful. D) Evolution can result in adaptations.
14) Which of the following statements about ecosystems is false? A) Energy cycles from organisms through the atmosphere and back to the organisms. B) Carbon cycles from the atmosphere through organisms and back to the atmosphere. C) Energy of sunlight is converted to energy stored in sugar molecules. D) Most energy that enters the ecosystem leaves the system as heat.
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Which statement about evolution by natural selection isfalse?
| Natural selection allows organisms with higher fitness toreproduce more successfully. |
| Natural selection favors those traits that confer higherfitness in the environment. |
| Natural selection is a random change in characteristics of apopulation over generations. |
| Evolution by natural selection affects populations oforganisms, not individual organisms. |
An organism's fitness depends on its _____.
| ability to survive and reproduce |
| ability to swap genetic material with other organisms |
| physical size |
| ability to mutate |
| population |
Consider the heavily armored stickleback fish population thatcolonized the lake. If all the individuals in that population weregenetically identical, what do you predict would happen when theycolonized the freshwater lake?
| The population would increase, as it has increased foodresources. |
| The population would evolve through natural selection to bebetter adapted to its environment. |
| The population would decrease due to more juvenile fish beingeaten. |
| No answer text provided. |
Which of the following are adaptations?
| Thicker beaks on finches that allows them to eat large seeds,when large seeds are the most abundant. |
| Less armor on stickleback fish in freshwater that allows themto grow faster to avoid predation. |
| More armor on stickleback fish in the ocean that prevents themfrom being eaten by larger predators. |
| None of the above. |
| All of the above. |
