Choose the following scenario that is best matched to the idea of evolution by natural selection. O 2% of individuals in a population die in a flood; the population remains large and there is no apparent pattern to the deaths O A group of birds grow to different sizes depending on their diet and their overall size is not heritable. A snowstorm arrives killing smaller birds. O Some bears are born with long, sharp claws for digging tubers (roots) out of the ground and eating them. Claw length "runs in families" with some families exhibiting longer claws. A late spring kills off many bears with short claws O A person experiences wrinkled fingertips in the water, but they are smooth when not in the water

Choose the following scenario that is best matched to the idea of evolution by natural selection. O 2% of individuals in a population die in a flood; the population remains large and there is no apparent pattern to the deaths O A group of birds grow to different sizes depending on their diet and their overall size is not heritable. A snowstorm arrives killing smaller birds. O Some bears are born with long, sharp claws for digging tubers (roots) out of the ground and eating them. Claw length "runs in families" with some families exhibiting longer claws. A late spring kills off many bears with short claws O A person experiences wrinkled fingertips in the water, but they are smooth when not in the water

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 4CT

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180- 170- Figure 1. For each of more than 200 human societies, the average height of the men is plotted against the average height of the women. The diagonal line shows where the points would fall if men and women were of equal height. From Rogers and Mukherjee (1992). 160- 150- 140- 140 150 160 170 180 Female stature (cm) tionry ysin.e 2. Using an evolutionary approach, explain the evolution of sexual dimorphism in height among men and women, Is this difference due to natural or sexual selection? How do know? you Male stature (cm)
« > A Moving to another question will save this response. Charles Darwin was the first person to propose: That the earth is older than a few thousand years. O A mechanism for how evolution occurs. A mechanism for evolution that was supported by evidence A way to use artificial selection as means for domesticating animals and plants.
Charles Lyell's contribution to evolution is the idea that: O the earth is more than 6,000 years old O species evolve O natural selection is the mechanism of evolution there will always be a shortage of resources
Snakes evolved from ancestors who had the ability to walk. Some snakes, in fact, still have small pelvis and leg bones that are remnants from this ancestor. What are these caled? Vestiglal structure O Homologous strucre O Sympatric structure O Molecular homology In the 1890s, hunting reduced the northern elephant seal population to only 20 individuals. Due to conservation efforts, their population size today is above 30,000. Of what is this an example? Founder effect
Question 2 The definition of natural selection includes: the inability of poorly adapted individuals to produce offspring. the adoption of the physical characteristics of the parent by their offspring. O the cloning of individuals to produce exact copies. O the ability of some individuals who are better adapted to their environment to produce more offspring than poorer adapted individuals. O resulting in the extinction of the selected organisms. Question 3 Let's assume that you have been working out at the gym every day for months until you are completely buffed out with well defined muscles. Which evolutionary biologist from Darwin's century would claim that your children would be born in a buffed out condition? Hutton O Leclerc Darwin O Lyell O Lamarck
the evolutionary relationship between mode O Humans are descended from chimpanzees O Humans and chimpanzees had a common ancestor several millior ears ago Humans and chimpanzees had a common ancestor several million years ago; sinc Chimpanzees are more closely related to gorillas than they are to humans QUESTION 2 Which of the following statements about hominins is FALSE? ALS Each hominin species on Earth was directly descended from the species that preced Multiple hominin species lived at the same time The genus homo arose about 2.5 million years ago We have now discovered a vast number of hominin fossils, allowing us to trace the e QUESTION 3 Which of the following are ways in which early hominins differed from apes? (select al
Adaptations B Fossils Ancestral structures Homologous structures 2. The process by which individuals that are better adapted to their environment are more lik to survive and reproduce than other members of the same species is called Natural selection Evolution C Competition Over production 3. Which of the following is the best example of an adaptation that helps organisms surviv their environment? A green coloring in lizards living on gray rocks B. a thick coat of fur on animals that live in the desert an extensive root system in desert plants
A reasonable definition for a species is: O A distinct kind of animal. O A group of living things with functionally similar traits, for example, all creatures that can fly. O A group of living things with taxonomically similar traits. O A group of taxonomically similar living things in which all healthy members can interbreed and produce fertile offspring. QUESTION 8 If microevolution is any change in the gene pool of a breeding population, then macroevolution is: O A change in the genetic makeup of group that eventually results in the development of a new species. O The mass exctinction of old species to make way for new. O Changes in the physical environment at large. O When microevolution happens on a large scale. * QUESTION 9 What is the primary cause of speciation? O Extinction. O Overpopulation. O Environmental change. O When a breeding population becomes reproductively isolated from its ancestral population, for a long enough time, in a different enough environment, that it…
O Ability to see UV light Grades lembers nferences In the 1890s, hunting reduced the northern elephant seal population to only 20 individuals. Due to conservation efforts, their population size today is above 30,000. How would the genetic diversity of the northern elephant seal population compare to the genetic diversity of the southern elephant seal population, which was not heavily hunted? * g Online sela on Periods 1 and 2 riods MP1, Highschool The northern elephant seal would have much less genetic varlation than the southern elephent seal. hool MP3, The southern elephant sea would have much less genetic variation than the northern elephant seal. AP4 O The two populations would have similar genetic variation Thu Fri The southern elephant seal would have stable genetic variation because it is in Hardy- Weinberg equilibrium. You are studying two variations of banana slugs. They have similar coloration and ATthnh thare.nhveieallu obl lein thecomeheh US A 9:0
QUESTION 2 Which statement about the genetic basis of races in humans is correct? You are more closely related to all people of your own race than you are to individuals of different races Differences in health outcomes among members of different racial groups are primarily due to genetic differences between these groups Racial differences only account for about 3-5% of genetic variation in humans Different racial groups are separated by hundreds of thousands of years of evolution
QUESTION 3 Darwin's theory of natural selection explains: O The way life began. O The way evolution works at the genetic level. The way dinosaurs became extinct. O That traits within a breeding population that are adaptive to specific environmental circumstances become more numerous in that population over time.
QUESTION 11 Which type of selection pressure is most likely to lead to the evolution of distinct species? O directional selection O disruptive selection O sensational selection O stabilizing selection Click Save and Submit to save and submit. Click Save All Answers to save all answers.