The answer is d. allowing the good genes to slowly <span>spread through the population.
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<span>Natural selection is the differences in survival
and reproduction as the consequence of differences in genotypes and, consequently, phenotypes. It is one of the factors of evolution that affects a frequency of different variations. </span><span>In natural selection, genotype variations that
will increase the chance of survival and reproduction of some organism are
preserved and will be inherited Thus, "good genes" will be inherited. But, as the evolution, it will be slow process, since rarely evolution happens quickly.</span>
A lizard is more closely related to a human than to a salamander. Many people are surprised by this conclusion regarding lizards, humans, and salamanders.
<span>The Cambrian. The Cambrian Explosion, which began roughly 545 million years ago, was a relatively rapid (~5-10 million years) diversification of multicellular life, including most of the animal phyla currently extant today. This was an evolutionary arms race of sorts, with many creatures achieving both larger size as well as symmetrical bodies and various structural supports, including skeletal systems. It was also a highly experimental times in terms of evolution, as many forms of creatures arose and went extinct in rapid succession during this period.</span>
Most radioactive waste is D. stored in underground disposal units
The name for the total amount of living matter is biomass. Hopefully this helps :)