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QUESTION 25 In Sousa's experiments, communities living on the smallest boulders had levels of disturbance andspecies...
Question completion Status: QUESTION 37 Disturbance is any discrete event in time that disrupts community structure...
Question completion Status: QUESTION 37 Disturbance is any discrete event in time that disrupts community structure and changes the abiotic environment True False QUESTION 38 community When there are high levels of disturbance in a community, the number of K-selected species should increase along with the overall diversity of the True False QUESTION 39 Which of the following is an example of commensalism? O a tapeworm living in the intestines of a mule deer. barnacles hitching a ride on the...
from thegh Match each definition in the left column with a term Definition Terms Any relatively...
from thegh Match each definition in the left column with a term Definition Terms Any relatively discrete event in time that disrupts ecosystem,a. Disturbance community, or population structure and changes resources, substrate availability, or the physical environment. Developed the traditional succession theory in which all species act c. Clements d. Gleason Question 18. Question 19. Question 20. together throughout the very predictable pattern of succession. Climax A community that occurs late in succession whose populations remain stable until disrupted by...
The graph to the right shows the results from one of Tilman’s experiments to investigate the...
The graph to the right shows the results from one of
Tilman’s experiments to investigate the relationship between
diversity and stability in plant communities. From this graph, one
can conclude that
a. resistance to drought increases with species
diversity.
b. drought resistance is not improved much by increasing
S from 20 to 25, suggesting some redundancy.
c. diverse communities tend to be more stable than less
diverse ones.
d. All of the above.
Drought resistance (change in biomass 1986-1988) 10...
Which of the following BEST describes the levels of biodiversity? Group of answer choices a. Habitat...
Which of the following BEST describes the levels of biodiversity? Group of answer choices a. Habitat loss only affects community and ecosystem diversity b. Populations can have lots of genetic diversity, or be totally fixed at specific loci. c. Exploitation and reduction in population size make populations less susceptible to genetic drift d. Nutrient-poor communities have high diversity
Adding nutrients to streams is beneficial to biological communities and is one way to improve water...
Adding nutrients to streams is beneficial to biological communities and is one way to improve water quality Select one: True False High levels of carbon dioxide and low levels of oxygen in water may indicate . . . Select one: a. high levels of bacterial growth b. high water temperature c. low levels of bacterial growth d. a healthy stream system High levels of nitrates and phosphates cause animals to die in streams by Select one: a. stimulating blooms of...
Explain how the Shannon Diversity Index is used to calculate species diversity. Using the information in the chart below, calculate the Shannon Diversity Index for both communities and indicate which...
Explain how the Shannon Diversity Index is used to calculate species diversity. Using the information in the chart below, calculate the Shannon Diversity Index for both communities and indicate which one, if either, is more diverse SPECIES Community #1 Community #2 Species A:30 N) N) 40 40 pecies B:25 pecies C:25 pecies D:0 pecies Eh0 pecies F: total N:o0 Multiple Choice There are not enough data to calculate the diversity; one needs to know the average fertility rates of each...
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...
1. In terms of microbial diversity, what would you expect to find when examining a sample...
1. In terms of microbial diversity, what would you expect to find when examining a sample of ice water obtained from the North Pole? A) High species richness and high species abundance B) High species richness and low species abundance c) Low species richness and low species abundance D) Low species richness and high species abundance 2. Which of the following factors does NOT influence the types of microbial activities in an ecosystem? A) The noise levels in an ecosystem...
answer please A series of experiments shows that oil content in a diploid grain is influenced...
answer please
A series of experiments shows that oil content in a diploid grain is influenced by five genes (A or a through Eore) with two additive alleles each. The highest-producing strain has 20% oil content; the lowest has 0%. What is the probable contribution to oil production from each type of allele? High producing allele (A, B, C, D, E) give 4% each and low producing allele (a, b, c, d, e) give 1%. High producing alleles (A, B,...
Imagine a species of randomly mating rodents living on an island. As the sea levels increase...
Imagine a species of randomly mating rodents living on an island. As the sea levels increase the low-lying center of the island gets flooded so that the island is now cut in half and there is no way for the animals on one side of the flooded region to cross over onto the other side; effectively turning one island into two islands. What would you expect to happen to these populations over time. SELECT ALL THAT ARE CORRECT Group of...
Question completion Status: QUESTION 37 Disturbance is any discrete event in time that disrupts community structure and changes the abiotic environment True False QUESTION 38 community When there are high levels of disturbance in a community, the number of K-selected species should increase along with the overall diversity of the True False QUESTION 39 Which of the following is an example of commensalism? O a tapeworm living in the intestines of a mule deer. barnacles hitching a ride on the...
from thegh Match each definition in the left column with a term Definition Terms Any relatively discrete event in time that disrupts ecosystem,a. Disturbance community, or population structure and changes resources, substrate availability, or the physical environment. Developed the traditional succession theory in which all species act c. Clements d. Gleason Question 18. Question 19. Question 20. together throughout the very predictable pattern of succession. Climax A community that occurs late in succession whose populations remain stable until disrupted by...
The graph to the right shows the results from one of
Tilman’s experiments to investigate the relationship between
diversity and stability in plant communities. From this graph, one
can conclude that
a. resistance to drought increases with species
diversity.
b. drought resistance is not improved much by increasing
S from 20 to 25, suggesting some redundancy.
c. diverse communities tend to be more stable than less
diverse ones.
d. All of the above.
Drought resistance (change in biomass 1986-1988) 10...
Explain how the Shannon Diversity Index is used to calculate species diversity. Using the information in the chart below, calculate the Shannon Diversity Index for both communities and indicate which one, if either, is more diverse SPECIES Community #1 Community #2 Species A:30 N) N) 40 40 pecies B:25 pecies C:25 pecies D:0 pecies Eh0 pecies F: total N:o0 Multiple Choice There are not enough data to calculate the diversity; one needs to know the average fertility rates of each...
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...
1. In terms of microbial diversity, what would you expect to find when examining a sample of ice water obtained from the North Pole? A) High species richness and high species abundance B) High species richness and low species abundance c) Low species richness and low species abundance D) Low species richness and high species abundance 2. Which of the following factors does NOT influence the types of microbial activities in an ecosystem? A) The noise levels in an ecosystem...
answer please
A series of experiments shows that oil content in a diploid grain is influenced by five genes (A or a through Eore) with two additive alleles each. The highest-producing strain has 20% oil content; the lowest has 0%. What is the probable contribution to oil production from each type of allele? High producing allele (A, B, C, D, E) give 4% each and low producing allele (a, b, c, d, e) give 1%. High producing alleles (A, B,...
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QUESTION 6
Determine the linear momentum of a 2,800 kg houseboat going 3
m/s.
9,100 kg.m/s...
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Draw the Lewis dot structures for the following molecules. None
of the atoms have a formal...
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Question 5
What effect would a decrease in
temperature have on pressure, assuming that volume
(T)...
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Jor-el throws a ball upward from the top of a 728 foot building
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What does it mean when an element is radioactive?
a.
It means the element is changing...
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A company deposits $6,000 in a bank at the end of every year for
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What are some strategies for eliminating service barriers?
By using your knowledge of
behavioral styles, please...
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What are the decimal numbers for 159, 150, 200, 113, 225, 87,
106, 81 when converted...
asked 28 minutes ago -
Calculate and plot the number and weight distributions of x-mers
found in a step-growth polymerization for...
asked 48 minutes ago -
The Baily Corporation has developed a specialized software
program that improves inventory control capability. The following...
asked 51 minutes ago -
Problem 5-4A (Part Level Submission) Wolford Department Store is
located in midtown Metropolis. During the past...
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Preparation of Benzoic Acid using a Grignard Reagent URGENT
1. During your Grignard formation, a small...
asked 1 hour ago