Which statement is the most likely explanation for why the mouse population changed over time? The hawks eat more dark mice than white mice because the dark mice taste better. The white mice are able to reproduce more successfully than the dark mice do.
Which of these adaptations would most likely improve the chances that the rodent species could survive as its environment changes?
A species of rodent lives in a moist forest climate. … What is an adaptation that would most likely improve the chances that the rodent species could survive as its environment changes? being able to eat plants that survive in a dry environment. You just studied 28 terms!
Which of the following best describes the role of mutation in natural selection?
Which statement below best describes the role of mutations in evolution by natural selection? Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time. Darwin’s observations of Galápagos finches support the theory of evolution.
What would happen if the mouse population increased?
Which would most likely happen if the field mouse population grew? … The habitat would get overpopulated because the mice woudl eat too much.How do variations improve the likelihood that a population will survive?
Variation allows some individuals within a population to adapt to the changing environment. … Some new alleles increase an organism’s ability to survive and reproduce, which then ensures the survival of the allele in the population.
What factor is most likely to contribute to the evolution of a species?
Evolution is a consequence of the interaction of four factors: (1) the potential for a species to increase in number, (2) the genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for an environment’s limited supply of the resources that individuals need in order to …
Which statement best describes what Charles Darwin observed on the Galapagos Islands?
Which of these statements best describes what Charles Darwin observed on the Galapagos Islands? The finch population on each island was unique. The finches on the islands ate seeds and nuts but no insects.
What happen if there was a sudden decrease in the population of mice?
the drop in the mouse population will lead to an increase in the beetle population. in a certain area, mice eat grass and snakes eat mice. … the populations of mice and snakes will decrease.What happens to mice over time?
Evolution happens because of natural selection. … Natural selection favored the light mice. Over time, the population became light colored. Enough changes may take place over time that the two types of mice become different species.
Are mice affected by climate change?Unexpectedly, researchers found deer mice are generally decreasing in mass over time, but this trend may not be linked to changes in climate or human population density, a proxy for urbanization.
Article first time published onWhich statement best describes the role of mutations in evolution?
Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
Which statement describes the role of mutations in evolution?
Which statement describes the role of mutations in evolution? Mutations typically result in adaptations that improve an individual’s ability to survive and reproduce. Mutations generally act to lower fitness by decreasing an individual’s ability to survive and reproduce.
Which statement best describes how mutations are related to evolution single choice?
Mutations are changes in DNA that produce weaker organisms that die, so these are eliminated by evolution.
How do variation enhanced the chances of survival of organisms in different environments and contributed to changes in a pool of genetic information?
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).
Why do populations with more genetic variation have a better chance of survival than a population with less genetic variation?
A genetically diverse population of individuals is more likely to survive than a population of individuals with similar genetic makeup. Variation allows some individuals within a population to adapt to the changing environment and natural selection allows the expression of those beneficial traits to persist.
What is genetic variations explain the different factors responsible for genetic variations?
Genetic variation refers to diversity in gene frequencies. Genetic variation can refer to differences between individuals or to differences between populations. Mutation is the ultimate source of genetic variation, but mechanisms such as sexual reproduction and genetic drift contribute to it as well.
What species did Darwin study on the Galapagos Islands?
On the islands, Charles Darwin discovered several species of finches. Thanks to his close observations, he discovered that the different species of finches varied from island to island.
What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland?
What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland? There were different types of predators on the island. … You also notice that one has a beak that is just a little longer.
Which of the following best explains why each of the finch species on the Galapagos islands evolved to be specialist?
Which of the following best explains why each of the finch species on the Galápagos Islands evolved to be specialists? –Reduced competition from other bird species allows finch species to focus on specific food resources.
Which factor is most likely to contribute to the evolution of a species quizlet?
Natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time.
What is a true statement about evolution?
“Evolution” refers both to a set of scientific facts and to a theory explaining such facts. “Evolution” refers to the scientific fact that biological organisms have changed through time, and that all life, including humanity, has descended with modification from common ancestors.
What observation about Galapagos finches most likely contributed to Darwin's theory of natural selection?
However, the Galapagos finches helped Darwin solidify his idea of natural selection. The favorable adaptations of Darwin’s Finches’ beaks were selected for over generations until they all branched out to make new species. These birds, although nearly identical in all other ways to mainland finches, had different beaks.
What is the population of mice?
AnimalPopulation (billions)Weight (kg)Pigs1.070Chickens18.03Elephants0.00074000Mice20 (?)0.020
How does natural selection produce change in a population of mice?
Natural selection acting on mice population over time. Individuals have variations within their heritable traits. … If this continues over generations, these favorable adaptations (the heritable features that aid survival and reproduction) will become more and more common in the population.
What have caused the decline in the population of white mice?
The former seem to be due ultimately to climate and the lack of winter breeding, but popu- lations often decline sharply in late summer in the midst of plentiful food; fall recruitment of new animals is density-dependent and usually poor. … Weather, shelter, and food are possible ultimate limiting resources.
What is likely to happen to the population of thrushes if the population of voles increases?
They can compete for food. If the population of voles increases as such there won’t be any effect on population of thrushes but they can compete for food because they both eat grass and berries.
What would happen if the snake population decreased?
If the snake population decreases you could get overrun by vermin. Rats and mice, the primary prey of many snakes, carry diseases.
Which will most likely happen if the number of snakes in the ecosystem decreases?
There will be a decrease in the population of snakes in the ecosystem. The nutrition of the soil in the ecosystem will decrease. More types of plants will begin growing in the ecosystem. Which is most responsible for recycling dead plants and animals in an ecosystem?
What is the mouse Utopia Experiment?
In the experiments, Calhoun and his researchers created a series of “rat utopias” – enclosed spaces in which rats were given unlimited access to food and water, enabling unfettered population growth. … He would later perform similar experiments on mice, from 1968 to 1972.
Can mice shrink?
Mice and rats have somewhat collapsible rib cages. Their ribs have a greater capacity to flex than most other mammals, enabling them to flatten themselves temporarily to squeeze through narrow cracks. If a mouse can fit its head through a space, the rest of its body can squeeze through as well.
How long does a mouse take to mature?
Most mice reach sexual maturity (males and females) at 4-7 weeks of age. Younger mice generally produce smaller litters and therefore are not typically mated until they reach 6-8 weeks, of age. Mice that have been housed alone or in same-sex pairs will usually not breed successfully if they are older than 6-8 months.
