Get Mastering Biology Chapter 1 Answers

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions.

What does it mean when it is said that natural selection is not random? The ones who survive have adaptations. It means it's basically survival of the fittest, the animals with certain traits that help them survive will be passed on and become more common.

-6CO2+6H2O→C6H12O6+6 O.

Mutation creates variation randomly. Natural selection is not random; by determining which traits are passed to the next generation, it can shape populations.

Evolution is not a random process. The genetic variation on which natural selection acts may occur randomly, but natural selection itself is not random at all. The survival and reproductive success of an individual is directly related to the ways its inherited traits function in the context of its local environment.

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The mice had no preference for black rock or sand; it was the predators who naturally selected for the dark fur traits to be high fitness. The predators could easily spot and hunt light mice, leaving dark mice to reproduce.

Carroll mean when he says "while mutation is random, natural selection is not"? (Note: More than one answer is correct.) Mutations are caused by changes in the environment. Natural selection can favor some mutations and not others. Selection can change depending on the environment.