- A bottleneck effect may...: Drastically reduce the size of a population/ Decrease the size of the gene pool/ Decrease the genetic variation
- A bottleneck event is considered a type of...: Genetic drift
- A change in the gene pool of a population due to chance is called...: Genetic drift
- A scientist who proposed that evolution resulted from the inheritance of acquired characteristics was...: Jean Baptiste Lamarck
- According to Darwin's theory of natural selection, certain individuals will leave more offspring on average than do other individuals. Their survival is due to...: Possession of inherited adaptations that are well-suited to the environment
- Antibiotics are medicines that...: Kill or slow the growth of bacteria
- Artificial selection is similar to natural selection in that both processes...: Depend on the variation among individuals
- Biological fitness is the ability of the individual to: Contribute to the gene pool of the next generation
- Charles Darwin came to realize that organisms of the same species are identical to one another.: False
- Charles Darwin published his book within 10 years of returning from his voyage aboard the HMS Beagle.: False
- Charles Darwin's observation that finches of different species on the Galapagos Islands have many similar physical characteristics supports the hypothesis that these finch species...: Originated from a common ancestor
- Darwin throughly enjoyed the tine he spent at sea.: False
- Darwin's theory of evolution is based on the idea(s) of...: Variation and natural selection
- Differences that exist within members of a population are referred to as variations.: True
- During his voyage on the Beagle, Charles Darwin made many observations...: In South America
- Fossils are most likely to be found in which type of rock?: Sedimentary
- If an organisms preyed upon by another organism evolves to become better adapted, it is likely the predator in question will also evolve.: True
- In humans, the pelvis and femur bone, or thigh bone, are involved in walking. In whales, the pelvis and femur are...: Vestigial structures
- In the 1800's, Charles Lyell emphasized that...: Gradual geological events in the past could explain the physical features of today's Earth
- In their work in the Galapagos islands, the Grants discovered that larger beaks were more common after...: Long periods of dry weather
- In their work, th Grants discovered that following a long period of drought the available seed types favored ground finches with smaller beaks.: False
- On the Galapagos Islands, Charles Darwin observed...: Somewhat similar species to those on the mainland, with traits that suited their particular environments
- Scientists who study life through the fossil record are called...: Paleontologists
- Selective breeding as practiced by farmers is also called natural selection.: False
- Sickle cell disease is more common in...: Africans
- The British naturalist who wrote Darwin describing explanation for evolution similar to Darwin's was...: Alfred Wallace
- The combined alleles of all the individuals that make up a population is the population's: Gene pool
- The economist Thomas Malthus suggested that: Popualtions can grow faster than the rate at which food and resources can be produced
- The fact that species today look different from their ancestors can be descried as descent with modification.: True
- The number and location of bones of many fossil vertebrates are similar to those in living vertebrates. Most biologists would probably explain this fact on the basis of...: A common ancestor
- The oldest fossils are approximately 3.5 billion years old.: True
- The species of finches that Charles Darwin found on the Galapagos Islands displayed different structual adaptations. One of the adaptations that Darwin noted was the...: Birds' different-shaped beaks
- What genotype is the most beneficial for individuals living in regions where malaria is common?: Heterozygous (1 sickle cell allele)
- When a farmer breeds only his or her own livestock, the process is called...: Artificial selection
- When farmers select animals or plants to use for breeding, they look for...: Inherited traits that are of value to humans
- When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which best describes this situation?: Individuals that function best tend to leave the most offspring
- When pesticide resistance occurs in insects, natural selection favors resistant individuals, which then transmit the gene for pesticide resistance to their offspring.: True
- Which of the following is the strongest indication that two species share a common ancestor?: Homologous structures
- Which of the following provides clues about the size and structure of once-living organisms?: Fossils
- Which of the following statements best descrives the findings of Rosemary and Peter Grant's study of the Galapagos finches?: Food availability affected beak size