Chapter 5 APES quiz well answered 2023/2024

Chapter 5 APES quizWhat is most significant when determining the diversity of an ecosystem? -The number of organisms present -The number of species present -The amount of land the ecosystem covers -The amount of precipitation an ecosystem receives -The interactions between producers and consumers - correct answer The number of species present If you were studying the niche of a bird species, you might investigate -the food it eats. -its predators. -the temperatures it needs to survive. -the places where it builds its nests. -all of the above - correct answer all of the above Which pair would most increase the rate of evolution within a species? -Slow environmental change and high genetic variation -Rapid environmental change and large population size -Long generation times and low genetic variation -Large population size and slow environmental change -Short generation time and small population size - correct answer Slow environmental change and high genetic variation Loblolly pine requires a minimum temperature to grow and thrive. Under current conditions, it is common in the southeastern region of the United States. If average temperatures increase throughout the United States, how would you expect the distribution of the loblolly pine to change? - correct answer spread north If allopatric speciation occurs after a population has split into two distinct populations, what would happen if the two species were reunited after many generations? - correct answer The two populations would not be able to interbreed. Which of the following would be the best example of an individual's phenotype? Having two recessive genes for blue eyes Having one dominant gene for brown eyes and one recessive gene for blue eyes Having two dominant genes for brown eyes Having a mutated gene for eye color Having brown eyes - correct answer Having brown eyes If a bird of a species that normally has green feathers produces an offspring with blue feathers, this is most likely the result of a genetic mutation. evolution. natural selection. natural variation. genotypic variation. - correct answer a genetic mutation. Which two scientists are credited with developing the theory of evolution by natural selection? - correct answer Darwin and Wallace Which statement about mutations is NOT correct? All mutations are harmful. A mutation is a change in an organism's DNA. Many mutations prevent live birth. Mutations may be caused by environmental factors such as UV radiation. - correct answer All mutations are harmful Which species would be most vulnerable to environmental changes? Species with a large population Niche generalists Niche specialists Species with rapid reproductive rates Species with high genetic variation - correct answer Niche specialists Which process can be controlled most directly by humans? Natural selection Artificial selection Genetic drift Mutation Genetic bottleneck - correct answer Artificial selection You and a friend are exploring the regrowth of a clear-cut forest. During your first expedition you observe a beetle species in which 50 percent of the population has a brown exterior coloration and 50 percent has a green exterior coloration. Five years later you return to the same spot to study the beetles. However, you now observe that 75 percent of beetles have a brown exterior. This is an example of microevolution. macroevolution. genotypes. species diversity. biodiversity. - correct answer microevolution If two similar species each occupy a smaller niche when they live together than they would if they lived alone, they are said to be involved in succession. partitioning resources. coevolving. increasing niche overlap. engaging in mimicry. - correct answer partitioning resources How many known mass extinctions have occurred since the evolution of complex life 500 million years ago? - correct answer 5 Which is the best description of species evenness? How evenly spread out a particular species is within an ecosystem The number of species within an ecosystem The number of organisms present within an ecosystem The relative dominance of each species within an ecosystem The ratio of consumers to producers - correct answer The relative dominance of each species within an ecosystem Which would least affect the ability of a species to adapt to a new environment? Population size Generation time Amount of parental care Genetic variation Rate of environmental change - correct answer Amount of parental care An East African wildebeest population inhabits open plains and grasslands in the Serengeti. The grass plains in East Africa have a temperature range from 50 degrees to 90 degrees Fahrenheit and the average monthly rainfall is between 1 and 6 inches. The wildebeest's predators include lions and crocodiles. These features describe characteristics of the wildebeest's fitness. fundamental niche. range of tolerance. distribution. realized niche. - correct answer Realized niche Which does NOT contribute to an increase in the biodiversity of an ecosystem?