WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
5th Edition
ISBN: 9781319272531
Author: PHELAN
Publisher: MAC HIGHER
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Chapter 10, Problem 6MC
Summary Introduction
Introduction:
There is a constant need for evolution to keep up with the continuous changes in the environment.
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Which of the following most accurately describes mutations?
a.
They typically have immediate and impactful evolutionary effects on populations.
b.
They are required for all populations to evolve.
c.
They are always deleterious.
d.
They occur so infrequently that most populations to harbor very little variation.
Adaptation can best be described as
A. The change in the genetic characteristics of a population of organisms over time
B. Evolutionary changes on a large scale
C. Gives us Genotype frequency of a population that is not evolving
D. Any feature of the organism that leads to improvement in performance in the environment
Natural selection occurs when which of the following conditions are met?
Group of answer choices
a.Variations between individual organisms lead to differential survival chances.
b.The conditions in an ecosystem support a wide range of living organisms
c.Individual organisms depend on each other to obtain available resources.
d. Habitat and nutrient resources in an area are plentiful over a long period of time.
Chapter 10 Solutions
WHAT IS LIFE? GDE.TO BIOLOGY W/PHYSIO.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Genetic variations in natural populations develop due to: Select one: A. random mutations of the DNA. B. changes in diet. O C. environmental catastrophies. D. changes in the environment. E. individual activities.arrow_forwardWhich one of the following traits is not shared by most model species? A. High fecundity B. Short generation time C. Ease of maintaining populations in a lab environment D. Exhibit traits that are relevant to human biomedical science E. Developmental fate of each cell has been mapped from embryo to adultarrow_forwardWhich of the following conclusions are MOST likely to be supported by genetic evidence? A. Some modern-day organisms did not exist in the past. B. Some organisms found in the fossil record do not currently exist. C. Environmental change affected the fitness of individuals differently based on their traits. D. Some disease-causing traits may remain in a population because their alleles provide an advantage to heterozygotes.arrow_forward
- Which aspect(s) of natural selection is(are) illustrated by the figure below? Check ALL answers that apply. A. Variation among individuals must be genetically transmissible to the next generation. B. Variation must exist in a population. C. Variation among individuals leads to differences in lifetime reproductive success. D. More individuals are produced each generation than the environment can support, resulting in competition for survival.arrow_forwarddescribe the modern theory of evoluton and discuss how it is supported by evidence from two of the following three areas a.population genetics b.molecular biology c.comparative anatomy and embryology evolution is one of the major unifying concepts of modern biology.explain the mechanism that lead to evolutionary change.describe how scientists use each of the following as evidence fornevolution a.bacterial resistance to antibiotics b.comparative biochemistry c.the fossil recordsarrow_forwardAlfred Russel Wallace and Charles Darwin argued that evolution by means of natural selection involves all of the following steps except: a. variation is present in all species b. species can produce more offspring than the environment can sustain c. all individuals within a species have equal chances to improve their fitness d. those individuals that are more fit will survive and reproduce in the greatest numbers e. over time, the species will evolve as the more fit individuals replace the less fit individualsarrow_forward
- The theory of evolution is most accurately described as Group of answer choices A. Nn opinion that some scientists hold about how life originated on Earth. B. An overarching explanation, supported by much evidence, for how populations change over time and new species arise from ancestral species. C. One possible explanation, among several scientific alternatives, about how species have come into existence. D. An educated guess about how species originate. E. An idea about how acquired characteristics are passed on to subsequent generations.arrow_forwardWith regard to biological evolution, which of the following statements is incorrect? Explain why.A. During its lifetime, an animal evolves to become better adaptedto its environment.B. The process of biological evolution has produced species thatare better adapted to their environments.C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animalwill reproduce.arrow_forwardA. The principle that human biology and culture evolved together and are intertwined makes anthropologists refer to humans as: a. biocultural organisms. b. an holistic species. c. human agents. d. co-specific organisms. B. Oldowan tools can be described as a. exceptionally small flint tools used in making other tools. b. polished, ground stone tools that look like teardrops. c. thin, symmetrical tools made from stone, bone, and antler. d. tennis ball sized rocks with a few flakes knocked off.arrow_forward
- Which of the following is not a component of evolution bynatural selection?a. Variation exists within a population.b. Organisms compete for resources.c. Individuals have different reproductive success.d. Organisms adapt due to environmental changes.e. Species are fixed.arrow_forwardWhich of the following is NOT an appropriate use of DNA Sequencing data. a. Comparing the genomes of endangered animals to protect them. b. Comparing the genomes of dog breeds to understand their evolution. c. Comparing the genomes of healthy and sick populations to understand genomic basis of disease. d. Comparing an individual's genome to other individuals in a population to determine their health risk or to eliminate them as suspects in a crime. e. Comparing populations based on socially constructed groupings to assert a hierarchy among those groups.arrow_forwardA small number of animals moves away from a large ancestral population on the continental mainland and colonizes an island. Which of the following is likely to occur? A. Genetic diversity will decrease on the mainland, because of a population bottleneck. B. Alleles that were more rare on the mainland are likely to become more common on the island, because of the founder effect. C. Genetic diversity will be lower on the island than the mainland, because of the founder effect. D. Mutations rates will increase on the island, in response to selection pressures in the new environment.arrow_forward
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