Need help Which of the following is TRUE as per Darwinian evolutionary theory?1. Variations between members of a species is significantly important for evolution.2. Aggressive animals have better chances to survive, in competition for survival.3. Offsprings may inherit advantageous behaviour attained during the life span of theirparent.4. Species continue to evolve if they have adapted perfectly to a stable environment.A. only 1.B. 1 and 2 only.C. 1, 2, and 4 only.D. 2, 3, and 4 only.

The Darwinian theory of evolution states that evolution is a process that occurs due to heritable…

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Biology

Darwinian evolutionary theory?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 3RQ: Which of the following situations will lead to natural selection? a. The seeds of two plants land...

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Which of the following is TRUE as per Darwinian evolutionary theory?
1. Variations between members of a species is significantly important for evolution.
2. Aggressive animals have better chances to survive, in competition for survival.
3. Offsprings may inherit advantageous behaviour attained during the life span of their
parent.
4. Species continue to evolve if they have adapted perfectly to a stable environment.
A. only 1.
B. 1 and 2 only.
C. 1, 2, and 4 only.
D. 2, 3, and 4 only.

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B. Fossils c) Ancestral structures Homologous structures 2. The process by which individuals that are better adapted to their environ to survive and reproduce than other members of the same species is call A Natural selection B. Evolution C Competition D. Over production 3. Which of the following is the best example of an adaptation that helps org their environment? A green coloring in lizerds living on gray rocks
Evolutionary change caused by natural selection results in species witha. greater complexity.b. less complexity.c. greater reproductive success in their native environment.d. the ability to survive longer.
Evolution results in an increase of organisms that are A. larger. B. more complex. C. better suited to the current environment. D. better able to adapt to changing environments.
Which 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 adult
Alfred 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 individuals
Which of the following statements is true? A. Evolution involves a change in gene frequencies from one generation to the next B. Natural selection is the only mechanism through which animals evolve to become adapted to their environment C. Genetic drift results in evolution but not adaptation to the environment D. For natural selection to occur, differences in genetically-based traits must result in differential reproductive success E. All of the above are true
I know option "A" is correct, but why isn't option "D" correct?
5. Use the diagram below to answer the following questions regarding this population of cacti. Pay close attention to the details of the picture. 1. What is the change in the cactus' environment that occurred? b. Is there unequal reproductive success being shown in the picture? Why or how? Is one cactus better suited for its environment than the other? Why? d. Is natural selection occurring in this image? Why or why not? a. C. 2.
Physiological changes only become relevant to evolution if they a. have measure impact within a population or between populations b. affect reproductive fitness c. Both A and B d. Neither A nor B
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1. Explain how a phenotype can increase, decrease, or have no effect on an organisms fitness. 2. Explain what would happen if a particular hair color suddenly gave an advantage under existing environmental conditions. 3. What components in an environment may be different on either side of the barrier? 4. What does the term "reproductive isolation" refer to? 5. Can you hypothesize how three organisms can have similar structures, yet they serve different functions? 6. It would seem that wisdom teeth no longer serve a purpose. Can you propose what purpose they served earlier in our evolution? 7. Explain why the pharyngeal slit becomes the Eustachian tube in humans and a gill in fish.
Pesticides can be used to control a variety of pests, such as insects, weeds, rodents, bacteria, fungi, etc. Over time many pesticides have gradually lost their effectiveness because pests have developed resistance – a significant decrease in sensitivity to a pesticide, which reduces the field performance of these pesticides. 1. Why do pesticides lose their effectiveness over time? Use the theory of natural selection and evolution to explain.