which of the following statements about evolution by natural selection is false. course hero

Is this true of evolution by natural selection?

Which of the following statements about evolution by natural selection is FALSE? a) natural selection is a random change in allele frequencies over generations b) evolution by natural selection affects populations of organisms, not individual organisms c) natural selection favors those traits that confer higher fitness in the environment d) natural selection allows organisms …

Which phenomenon of evolution causes evolution?

Jun 27, 2013 · 9.Which of the following statements about cell theory and evolution is false? A. Evolution can be defined as a change in allele frequencies within a population over time. B. Evolution by natural selection occurs when individuals within a population adapt to changes in the environment and pass these changes on to their offspring.

Is natural selection true in bacteria and insects?

43 Which of the following statements concerning evolution is FALSE a Natural from BIOLOGY 1 at Georgia Southern University

What do you mean by evolution?

Question 3 Points: 10 out of 10 Which statement about evolution is FALSE? 1. Natural selection acts on genetic differences within a population to cause evolution. Individuals do not evolve. 2. According to evolutionary theory, you are related to a bacterium, to a yeast cell, to a snake, and to a whale. In fact, you are related to every species now alive on Earth, and to fossil species like ...

Which statement about evolution by natural selection is false?

Another process of evolution is genetic drift, in which random changes occur in the gene frequencies of a particular population. It takes place over generations. So, the false statement is C. Some other processes of evolution are mutation and speciation.

Which of the following statements about evolution by natural selection is most accurate?

The correct statement is - Natural Selection is the process by which 'organisms with more beneficial traits' are likely to survive and reproduce. EXPLANATION: Natural selection is the process of 'differential survival' and 'reproduction in organisms' that have different phenotype.Jun 18, 2019

What are the 4 pieces of evidence for evolution by natural selection?

Evidence for evolution: anatomy, molecular biology, biogeography, fossils, & direct observation.

What is the adaptive changes process called in evolution?

Adaptation. The term “adaptation” derives from ad + aptus, literally meaning “toward + fit”. As the name implies, this is the process by which populations of organisms evolve in such a way as to become better suited to their environments as advantageous traits become predominant.Apr 9, 2009

Which of the following best describes evolution by natural selection?

So, the correct answer is 'Individuals with the most favorable traits survive and reproduce'

Which statement regarding natural selection is most correct?

Which statement about natural selection is most correct? Well-adapted individuals leave more offspring, and thus contribute more to the next generation's gene pool, than do poorly adapted individuals.

What are the 5 evidences of evolution?

There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.May 15, 2020

What was Darwin's evidence for natural selection?

Anatomical Evidence These physical changes were necessary for the survival of the finches. Darwin noticed the birds that did not have the right adaptations often died before they were able to reproduce. This led him to the idea of natural selection. Darwin also had access to the fossil record.May 1, 2019

What are the 6 evidences of evolution?

Evidence for evolutionAnatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous structures).Molecular biology. DNA and the genetic code reflect the shared ancestry of life. ... Biogeography. ... Fossils. ... Direct observation.

Is natural selection adaptive evolution?

Natural selection drives adaptive evolution by selecting for and increasing the occurrence of beneficial traits in a population.Aug 14, 2020

How does natural selection cause adaptive evolution?

Natural selection only acts on the population's heritable traits: selecting for beneficial alleles and, thus, increasing their frequency in the population, while selecting against deleterious alleles and, thereby, decreasing their frequency. This process is known as adaptive evolution.

How does natural selection lead to evolution?

Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.

What are the similarities between salamanders and humans?

Humans share several features with salamanders. Certain genes and proteins are nearly identical between the two species; both species have four limbs with a similar skeletal structure; the species' early embryos are very similar; and where the salamander has a functional tail, humans have a vestigial tailbone.

Why are resistance traits most prevalent?

Resistance traits will be most prevalent, however, in bacteria that are chronically exposed to antibiotic drugs. D. Resistance traits are produced because antibiotic drugs cause mutations in bacterial cells. The resistance traits only occur in the presence of antibiotics.

What is the function of the forelimbs?

The forelimbs (or possibly hind limbs) will be used for the new purpose of flight. This new function will arise through many gradual steps, and there will be aspects of the wing that reflect its history and are not perfectly suited for flight. C.

What happens after a copper smelter is operational?

After a copper smelter begins operation, local downwind populations of plants begin to adapt to the resulting air pollution. Scientists document, for example, that the acid tolerance of several plant species has increased significantly in the polluted area. This is an example of. A. directional selection.

How did Lysenko solve the food shortages in the Soviet Union?

A. During the 1950s, a scientist named Lysenko tried to solve the food shortages in the Soviet Union by breeding wheat that could grow in Siberia. He theorized that if individual wheat plants were exposed to cold, they would develop additional cold tolerance and pass it to their offspring.

Why are forelimbs similar?

B. The forelimbs are similar because of adaptation through the process of natural selection. C. The forelimbs are similar because there is only one workable way to construct a useful arm, leg, or wing.

Do pupfish live in springs?

As the large lakes dried up, small groups of pupfish remained in springs and pools fed by groundwater seepage. Now, although many of these small springs still have pupfish, each population, through evolution, has become very different from populations of pupfish in other springs.

What is Darwin's theory of evolution?

C. Evolution is what Darwin proposed to account for all the changes he observed in the finches so it is a hypothesis, not a theory. D. Evolution occurred in the past, but it is not occurring in the present, so it cannot be a theory. A. Darwin's theory is supported with a tremendous amount of evidence.

What are the two groups of animals that share a common ancestor?

Birds, snakes, lizards, turtles, and crocodiles are all thought to share a common ancestor and several homologous traits. Assuming that this is true, this group of animals would best represent. A. a polyphyletic group. B. a monophyletic group.

How do you determine the color of pepper moths?

Coloration in the peppered moth (Biston betularia) is determined by a single gene with two alleles showing complete dominance. Dark moths are homozygous dominant or heterozygous for the gene, light moths are homozygous recessive. In a sample of 100 moths, you determine that 64 of the moths are dark.

Is a B/B beetle a mutant?

Normally the beetles are red; however, this population is polymorphic for a mutant autosomal body color, black, designated by b/b. Red is dominant to black, so B/B and B/b genotypes are red. Assume the population is in Hardy-Weinberg equilibrium, with equal frequencies of the two alleles.