ISC Chapter 21

Pasteur successfully demonstrated to his peers that life forms do not spontaneously arise from non living matter and yet modern science must still show

These organisms rely on other organisms for carbon and energy

Whether used in a biological context or not, the word evolution requires

The theories of natural selection and evolution are intimately related but distinct because the former occurs in individual organisms, while the latter occurs in

The percentage of atmospheric nitrogen has, over Earth's history

An owner of a female cat has its claws removed. Future owners of that cat's kittens who desire claw-less kittens

Beginning with Darwin, studies of finches heave led biologists to realize that ________ represents one environmental selecting agent of natural selection

Where can we find evidence not only for evolution but how plate tectonics can be viewed as influencing the evolution of life?

The mating of a male mule and a female horse will produce:

New scientific evidence which suggests modern evolutionary biology will meet a fate similar to that of Lamarckian evolution:

An Earth-like planet forms around a star with a chemistry much like the early Earth but with a nitrogen-oxygen atmosphere. The chances that life will arise

Chemoautotrophs are not found among

Objects in outer space may influence the evolution of life on Earth through

In a certain environment containing light-colored tree trunks, light-colored moths found protection from detection from certain predators. If the tree trunks turn dark from human air pollution

Upon repeated exposure to ultraviolet light, a certain individual animal experiences cell mutation that causes skin cancer but the offspring of the affected individual do not have cancer. The result happened because

The concept of spontaneous generation held that lifecould be generated from

Controlled experiments performed by ________, provided evidence that spontaneous generation was not a valid hypothesis

The presence of complex organic molecules is not limited to Earth. Organic molecules have also been detected

The autotroph hypothesis has gained support from recent discoveries

Fossil evidence indicates Earth's early organisms arose

Following recent genetic research, modern biology recognizes three main kinds of living things termed

The endosymbiotic theory attempts to explain

Darwin and Wallace first proposed the theory of natural selection in this century

The selective passage of genes from one generation to the next through sexual reproduction constitutes this mechanism

Genetic diversity required for natural selection occurs through

When an insecticide introduced into the environment of a particular species proves ineffective over time, the process of ________ has been demonstrated

All of the genes in all the individuals in a population constitutes what Hardy and Weinberg described as a

Facts that support evolutionary theory can be found in

A population of organisms whose members have the potential to interbreed naturally to produce fertile offspring but not interbreed with other groups is commonly defined as a

The concept that different species can be determined by their inability to interbreed is called the

The process of generating new species

Lamarck's theory of evolutionary changed involved the passing of ________ to offspring