Homework Answers
option (A) is correct... alll variations between individuals is due only to environmental factors.
natural selection means differential reproduction among members of same gene pool.
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body sizes (unit lecture and text reading) Question 8 1 pts Which of these conditions should...
Which of these conditions should completely prevent the occurrence of natural selection in a population over...
Which of these conditions should completely prevent the occurrence of natural selection in a population over time? a. All variation between individuals is due only to environmental factors. b. The environment is changing at a relatively slow rate. c. The population size is large. d. The population lives in a habitat where there are no competing species present.
D Question 14 2 pts Natural selection will not occur in a population over time if...
D Question 14 2 pts Natural selection will not occur in a population over time if All individual variation is due to environmental factors. The environment is changing at a relatively slow rate. The population size is large. The population lives in a habitat where there are no competing species present Besides Darwin, who else proposed a concept of natural selection? Charles Lyell Gregor Mendel Alfred Wallace e John Henslow Thomas Malthus
D Question 4 1 pts Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes),...
D Question 4 1 pts Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvier's attempt to explain the existence of (LO 3.2) O the origin of new species. (unit lecture and text reading) evolution. (unit lecture and text reading) uniformitarianism. (unit lecture and text reading) O the fossil record. (unit lecture and text reading)
Question 6 1 pts In light of the previous question, how can we explain the fact...
Question 6 1 pts In light of the previous question, how can we explain the fact that the Hawaiian bobtail squid has clearly evolved to precisely control the association with its bacterial symbiont, whereas the bacterium shows no signs of adapting to the same symbiosis? (Why does the animal host appear to be 'winning the evolutionary race to control their interaction?) squid have remarkably high mutation rates It is actually best for the bacterium to simply let the squid evolve...
Question 1 2 pts Which statement represents a result of natural selection! o the best adapted...
Question 1 2 pts Which statement represents a result of natural selection! o the best adapted individuals have lower ness ele frequency in a population does not change Onewalls are added to the population seeded O different phenotypes with a species we favored in different habitats Question 2 2 pts When we say that one individual is more fit has higher fitness than other individuals, we mean that it produces more later than others in the population compete for food...
Question 1 1 pts Which of the following is true? Viruses cannot evolve because they are...
Question 1 1 pts Which of the following is true? Viruses cannot evolve because they are not technically alive; they cannot replicate on their own When viruses hijack a host's cells to replicate, mistakes made in the copying of their DNA or RNA can generate a huge number of genetic variants in the virus population A mutation in the molecules involved in binding to a host cell that allows binding to a new host species will not affect the virus's...
Question 8 1 pts Which of the following is NOT true about sexual selection? Sexual selection...
Question 8 1 pts Which of the following is NOT true about sexual selection? Sexual selection operates only on males because they are the ones that compete and females are the "choosy" ones Wb Which types of sexual signals evolve in a given lineage may depend on pre-existing sensory biases (eg. whether individuals can see in color, or what sounds they like) Sexual signals are often "expensive" (in energy, or risks to safety), which means that usually only healthy individuals...
please help Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
please answer all the questions Question 8 0 / 1 pts Our understanding of RNA ...
please answer all the questions
Question 8
0 / 1 pts
Our understanding of RNA
was non-existent until 2000
started with the identification of a tRNA which suggested a
method of converting DNA to protein
began to identify that DNA-->protein--> RNA
stopped growing after it's original discovery in the 70s
IncorrectQuestion 10
0 / 1 pts
Enzymes allow for chemical reactions to occur in the cell that
may not naturally occur at the right place at...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in...
Please answer as many as possible!! QUESTION 10 As the hydrogen ion [H +] concentration in a solution decreases, the hydroxide ion [OH -] concentration increases and the pH increases. decreases and the pH increases. increases and the pH decreases. decreases and the pH stays the same. decreases and the pH decreases. 1 points QUESTION 11 Environmental science is a theoretical approach in interpreting the environment. way to see the world in scientific terms. narrowly defined set of physical,...
D Question 14 2 pts Natural selection will not occur in a population over time if All individual variation is due to environmental factors. The environment is changing at a relatively slow rate. The population size is large. The population lives in a habitat where there are no competing species present Besides Darwin, who else proposed a concept of natural selection? Charles Lyell Gregor Mendel Alfred Wallace e John Henslow Thomas Malthus
D Question 4 1 pts Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvier's attempt to explain the existence of (LO 3.2) O the origin of new species. (unit lecture and text reading) evolution. (unit lecture and text reading) uniformitarianism. (unit lecture and text reading) O the fossil record. (unit lecture and text reading)
Question 6 1 pts In light of the previous question, how can we explain the fact that the Hawaiian bobtail squid has clearly evolved to precisely control the association with its bacterial symbiont, whereas the bacterium shows no signs of adapting to the same symbiosis? (Why does the animal host appear to be 'winning the evolutionary race to control their interaction?) squid have remarkably high mutation rates It is actually best for the bacterium to simply let the squid evolve...
Question 1 2 pts Which statement represents a result of natural selection! o the best adapted individuals have lower ness ele frequency in a population does not change Onewalls are added to the population seeded O different phenotypes with a species we favored in different habitats Question 2 2 pts When we say that one individual is more fit has higher fitness than other individuals, we mean that it produces more later than others in the population compete for food...
Question 1 1 pts Which of the following is true? Viruses cannot evolve because they are not technically alive; they cannot replicate on their own When viruses hijack a host's cells to replicate, mistakes made in the copying of their DNA or RNA can generate a huge number of genetic variants in the virus population A mutation in the molecules involved in binding to a host cell that allows binding to a new host species will not affect the virus's...
Question 8 1 pts Which of the following is NOT true about sexual selection? Sexual selection operates only on males because they are the ones that compete and females are the "choosy" ones Wb Which types of sexual signals evolve in a given lineage may depend on pre-existing sensory biases (eg. whether individuals can see in color, or what sounds they like) Sexual signals are often "expensive" (in energy, or risks to safety), which means that usually only healthy individuals...
please help
Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
please answer all the questions
Question 8
0 / 1 pts
Our understanding of RNA
was non-existent until 2000
started with the identification of a tRNA which suggested a
method of converting DNA to protein
began to identify that DNA-->protein--> RNA
stopped growing after it's original discovery in the 70s
IncorrectQuestion 10
0 / 1 pts
Enzymes allow for chemical reactions to occur in the cell that
may not naturally occur at the right place at...
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