The difference between a community and population is(1 point) Responses populations refer to multiple species at the same time while community refers to a single species populations refer to multiple species at the same time while community refers to a single species populations refer to living things while community refers to living and non-living things populations refer to living things while community refers to living and non-living things populations refer to one species while community refers to all living species in an area populations refer to one species while community refers to all living species in an area populations refer to multiple species while community refers to living and non-living things populations refer to multiple species while community refers to living and non-living things Question 2 A population of mosquito larvae is living in a large pond. Mosquitofish are a type of fish that eat mosquito larvae. Which of the following describes a direct effect on the population of mosquito larvae when mosquitofish are introduced to the pond?(1 point) Responses emigration increases emigration increases births decrease births decrease deaths increase deaths increase immigration decreases immigration decreases Question 3 The cardinal is a type of bird. Which of the following would increase the size of a population of cardinals in a forest?(1 point) Responses an increase in the birth rate of cardinals an increase in the birth rate of cardinals an increase in the death rate of cardinals an increase in the death rate of cardinals increased emigration of young cardinals from the forest ecosystem increased emigration of young cardinals from the forest ecosystem increased immigration of cardinal predators into the forest ecosystem increased immigration of cardinal predators into the forest ecosystem Question 4 The green sea turtle is an endangered species. The graph below shows the estimated number of green sea turtle nests on a beach in Costa Rica between 1970 and 2003. Which of the following could explain the change in the graph. (1 point) Responses Humans passed laws preventing the collection of green sea turtles. Humans passed laws preventing the collection of green sea turtles. Humans built more hotels on the beach where green sea turtles build nests. Humans built more hotels on the beach where green sea turtles build nests. Humans passed laws protecting animals that eat green sea turtle eggs. Humans passed laws protecting animals that eat green sea turtle eggs. Humans collected more green sea turtle eggs for scientists to study. Humans collected more green sea turtle eggs for scientists to study. Question 5 Refer to the chart below. Determine if there will be an increase or decrease in population size. Choose one answer per row. (4 points) Increase Decrease Natality Mortality Immigration Emigration Question 6 Read the following word problem to determine population change to answer the following question: There is a population of 100 horses on an island. Over the course of a year 10 horses were born, 5 horses passed away, 10 horses emigrated from the island and 5 horses immigrated to the island. What is the new population at the end of the year?(1 point) Responses The population would 90 because the net change is minus ten The population would 90 because the net change is minus ten The population would still be 100 because the net change is zero The population would still be 100 because the net change is zero You cannot determine the new population based on the information given You cannot determine the new population based on the information given The population would 110 because the net change is plus ten The population would 110 because the net change is plus ten Question 7 The image above shows just some of the impacts that humans have on ecosystems. How do these actions affect biodiversity? (1 point) Responses Biodiversity is increased due to the additional resources humans provide Biodiversity is increased due to the additional resources humans provide Biodiversity is increased by the creation of new ecological niches that come with manmade habitats Biodiversity is increased by the creation of new ecological niches that come with manmade habitats Biodiversity is decreased due to the damage that humans cause to natural habitats. Biodiversity is decreased due to the damage that humans cause to natural habitats. Biodiversity is decreased due to the people putting animals in zoos. Biodiversity is decreased due to the people putting animals in zoos. Question 8 Global warming is one of the biggest dangers facing life on earth today. What is the effect of global warming on biodiversity?(1 point) Responses More species will thrive due to the increased temperature since it is easier to survive in warm climates More species will thrive due to the increased temperature since it is easier to survive in warm climates Species that live in cold areas will die, but those that live in warm areas will all survive and become more abundant Species that live in cold areas will die, but those that live in warm areas will all survive and become more abundant New species will be created that like warmer temperatures. New species will be created that like warmer temperatures. Many species are likely to become extinct as ecosystems disappear, such as artic ice and coral reefs. Many species are likely to become extinct as ecosystems disappear, such as artic ice and coral reefs. Question 9 What is the carrying capacity of the fish population in the graph above? (1 point) Responses 1450 1450 600 600 1000 1000 900 900 Question 10 Consider the fish population in the graph above. What are some factors that can affect the carrying capacity of the pond for this fish species? Select all that apply(1 point) Responses Dissolved Oxygen supply Dissolved Oxygen supply Food supply Food supply Predators Predators Disease Disease Space Space Human activities Human activities Question 11 Which of the following characteristics is most useful when classifying a eukaryote into a kingdom?(1 point) Responses the organism’s mass and color the organism’s mass and color the way the organism moves the way the organism moves the way the organism feed the way the organism feed the organism’s structure and form the organism’s structure and form Question 12 The scientific name of the sugar maple is Acer saccharum, which of the following is the genus name? (1 point) Responses none of the above none of the above Acer saccharum Acer saccharum Acer Acer saccharum saccharum Question 13 Which of the following taxonomic levels have organisms that are most closely related?(1 point) Responses order order phylum phylum genus genus class class Question 14 Rana catesbeiana, the bullfrog, is most closely related to the(1 point) Responses African bullfrog, Pyxicephalus adspersus African bullfrog, Pyxicephalus adspersus Asian flying frog, Polypedates leucomystax Asian flying frog, Polypedates leucomystax spotted chorus frog, Pseudacris clarki spotted chorus frog, Pseudacris clarki Northern leopard frog, Rana pipiens Northern leopard frog, Rana pipiens Question 15 (1 point) Responses Student 1 Student 1 Student 2 Student 2 Student 3 Student 3 Student 4 Student 4 Question 16 According to the table above, identify the kingdom for an organism that is a unicellular autotrophic eukaryote. (1 point) Responses Plantae Plantae Eubacteria Eubacteria Protista Protista Fungi Fungi Question 17 Use the chart above to help you respond to the two questions blow. Which two animals are most closely related? (1 point) Use evidence from the table above to support your response. (1 point) (2 points) 0 / 10000 Word Limit Question 18 The western snowy plover is a small bird that makes its nest in the sand on ocean and river shores. The snowy plover’s breeding season is from March to September. A plover typically lays three eggs each year. If disturbed, it will often abandon its nest. A snowy plover and its nest are shown below. a. Compare the birth rate (number of eggs hatched) to the death rate in a population of snowy plovers that is increasing in size. (1 point) (1 point) 0 / 10000 Word Limit Question 19 b. In an initial population of 100 snowy plovers, there were 30 births and 20 deaths in one year. Based only on the birth and death rates, identify the expected size of the snowy plover population at the end of the year. (1 point)(1 point) 0 / 10000 Word Limit Question 20 c. At the end of the year, there were actually 80 snowy plovers in the population. Assuming there were no additional births or deaths, explain why the actual population size differed from the expected population size. (2 points)(2 points) 0 / 10000 Word Limit Question 21 d. Current efforts to conserve plover populations include building wire fences around their nests and making certain beaches off-limits to people during plover breeding season. Explain why making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences around plover nests. (2 points)(2 points) 0 / 10000 Word Limit Skip to navigation

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Here are the answers to your questions based on biological concepts regarding populations, communities, and conservation:

Question 1: The difference between a community and population is:
Populations refer to one species while community refers to all living species in an area.

Question 2: The direct effect on the population of mosquito larvae when mosquitofish are introduced:
Deaths increase.

Question 3: Which of the following would increase the size of a population of cardinals in a forest?
An increase in the birth rate of cardinals.

Question 4: Which of the following could explain the change in the graph regarding green sea turtle nests?
Humans passed laws preventing the collection of green sea turtles.

Question 5:

Natality: Increase

Mortality: Decrease

Immigration: Increase

Emigration: Decrease

Question 6: What is the new population at the end of the year?
The population would be 90 because the net change is minus ten.

Question 7: How do human actions affect biodiversity?
Biodiversity is decreased due to the damage that humans cause to natural habitats.

Question 8: What is the effect of global warming on biodiversity?
Many species are likely to become extinct as ecosystems disappear, such as Arctic ice and coral reefs.

Question 9: What is the carrying capacity of the fish population in the graph above?
1000 (Assuming from typical knowledge as the graph is not visible).

Question 10: Factors that can affect the carrying capacity of the pond for this fish species:
All that apply: Dissolved Oxygen supply, Food supply, Predators, Disease, Space, Human activities.

Question 11: Which of the following characteristics is most useful when classifying a eukaryote into a kingdom?
The organism’s structure and form.

Question 12: The genus name of the sugar maple (Acer saccharum) is:
Acer.

Question 13: Which of the following taxonomic levels have organisms that are most closely related?
Genus.

Question 14: Rana catesbeiana, the bullfrog, is most closely related to the:
Northern leopard frog, Rana pipiens.

Question 16: Identify the kingdom for an organism that is a unicellular autotrophic eukaryote:
Protista.

Question 17: Which two animals are most closely related?
(Use of evidence would depend on data from a table that is not provided).

Question 18 a: Compare the birth rate to the death rate in a population of snowy plovers that is increasing in size:
The birth rate must be higher than the death rate for the population to increase.

Question 19 b: Identify the expected size of the snowy plover population at the end of the year:
Expected population size is 110 (100 initial + 30 births - 20 deaths).

Question 20 c: Explain why the actual population size differed from the expected population size:
The actual population size could be lower due to factors like emigration, predation, or environmental stresses that weren't accounted for in the birth and death rates.

Question 21 d: Explain why making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences:
Making certain beaches off-limits protects the plovers and their nests from disturbances and potential abandonment, while fences may still allow for disturbances from other wildlife or humans outside the fenced areas. Additionally, allowing natural behaviors without interference is vital for conservation.

Feel free to clarify any of the questions or provide additional details for further assistance!

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The difference between a community and population is(1 point) Responses populations refer to multiple species at the same time while community refers to a single species populations refer to multiple species at the same time while community refers to a single species populations refer to living things while community refers to living and non-living things populations refer to living things while community refers to living and non-living things populations refer to one species while community refers to all living species in an area populations refer to one species while community refers to all living species in an area populations refer to multiple species while community refers to living and non-living things populations refer to multiple species while community refers to living and non-living things Question 2 A population of mosquito larvae is living in a large pond. Mosquitofish are a type of fish that eat mosquito larvae. Which of the following describes a direct effect on the population of mosquito larvae when mosquitofish are introduced to the pond?(1 point) Responses emigration increases emigration increases births decrease births decrease deaths increase deaths increase immigration decreases immigration decreases Question 3 The cardinal is a type of bird. Which of the following would increase the size of a population of cardinals in a forest?(1 point) Responses an increase in the birth rate of cardinals an increase in the birth rate of cardinals an increase in the death rate of cardinals an increase in the death rate of cardinals increased emigration of young cardinals from the forest ecosystem increased emigration of young cardinals from the forest ecosystem increased immigration of cardinal predators into the forest ecosystem increased immigration of cardinal predators into the forest ecosystem Question 4 The green sea turtle is an endangered species. The graph below shows the estimated number of green sea turtle nests on a beach in Costa Rica between 1970 and 2003. Which of the following could explain the change in the graph. (1 point) Responses Humans passed laws preventing the collection of green sea turtles. Humans passed laws preventing the collection of green sea turtles. Humans built more hotels on the beach where green sea turtles build nests. Humans built more hotels on the beach where green sea turtles build nests. Humans passed laws protecting animals that eat green sea turtle eggs. Humans passed laws protecting animals that eat green sea turtle eggs. Humans collected more green sea turtle eggs for scientists to study. Humans collected more green sea turtle eggs for scientists to study. Question 5 Refer to the chart below. Determine if there will be an increase or decrease in population size. Choose one answer per row. (4 points) Increase Decrease Natality Mortality Immigration Emigration Question 6 Read the following word problem to determine population change to answer the following question: There is a population of 100 horses on an island. Over the course of a year 10 horses were born, 5 horses passed away, 10 horses emigrated from the island and 5 horses immigrated to the island. What is the new population at the end of the year?(1 point) Responses The population would 90 because the net change is minus ten The population would 90 because the net change is minus ten The population would still be 100 because the net change is zero The population would still be 100 because the net change is zero You cannot determine the new population based on the information given You cannot determine the new population based on the information given The population would 110 because the net change is plus ten The population would 110 because the net change is plus ten Question 7 The image above shows just some of the impacts that humans have on ecosystems. How do these actions affect biodiversity? (1 point) Responses Biodiversity is increased due to the additional resources humans provide Biodiversity is increased due to the additional resources humans provide Biodiversity is increased by the creation of new ecological niches that come with manmade habitats Biodiversity is increased by the creation of new ecological niches that come with manmade habitats Biodiversity is decreased due to the damage that humans cause to natural habitats. Biodiversity is decreased due to the damage that humans cause to natural habitats. Biodiversity is decreased due to the people putting animals in zoos. Biodiversity is decreased due to the people putting animals in zoos. Question 8 Global warming is one of the biggest dangers facing life on earth today. What is the effect of global warming on biodiversity?(1 point) Responses More species will thrive due to the increased temperature since it is easier to survive in warm climates More species will thrive due to the increased temperature since it is easier to survive in warm climates Species that live in cold areas will die, but those that live in warm areas will all survive and become more abundant Species that live in cold areas will die, but those that live in warm areas will all survive and become more abundant New species will be created that like warmer temperatures. New species will be created that like warmer temperatures. Many species are likely to become extinct as ecosystems disappear, such as artic ice and coral reefs. Many species are likely to become extinct as ecosystems disappear, such as artic ice and coral reefs. Question 9 What is the carrying capacity of the fish population in the graph above? (1 point) Responses 1450 1450 600 600 1000 1000 900 900 Question 10 Consider the fish population in the graph above. What are some factors that can affect the carrying capacity of the pond for this fish species? Select all that apply(1 point) Responses Dissolved Oxygen supply Dissolved Oxygen supply Food supply Food supply Predators Predators Disease Disease Space Space Human activities Human activities Question 11 Which of the following characteristics is most useful when classifying a eukaryote into a kingdom?(1 point) Responses the organism’s mass and color the organism’s mass and color the way the organism moves the way the organism moves the way the organism feed the way the organism feed the organism’s structure and form the organism’s structure and form Question 12 The scientific name of the sugar maple is Acer saccharum, which of the following is the genus name? (1 point) Responses none of the above none of the above Acer saccharum Acer saccharum Acer Acer saccharum saccharum Question 13 Which of the following taxonomic levels have organisms that are most closely related?(1 point) Responses order order phylum phylum genus genus class class Question 14 Rana catesbeiana, the bullfrog, is most closely related to the(1 point) Responses African bullfrog, Pyxicephalus adspersus African bullfrog, Pyxicephalus adspersus Asian flying frog, Polypedates leucomystax Asian flying frog, Polypedates leucomystax spotted chorus frog, Pseudacris clarki spotted chorus frog, Pseudacris clarki Northern leopard frog, Rana pipiens Northern leopard frog, Rana pipiens Question 15 (1 point) Responses Student 1 Student 1 Student 2 Student 2 Student 3 Student 3 Student 4 Student 4 Question 16 According to the table above, identify the kingdom for an organism that is a unicellular autotrophic eukaryote. (1 point) Responses Plantae Plantae Eubacteria Eubacteria Protista Protista Fungi Fungi Question 17 Use the chart above to help you respond to the two questions blow. Which two animals are most closely related? (1 point) Use evidence from the table above to support your response. (1 point) (2 points) 0 / 10000 Word Limit Question 18 The western snowy plover is a small bird that makes its nest in the sand on ocean and river shores. The snowy plover’s breeding season is from March to September. A plover typically lays three eggs each year. If disturbed, it will often abandon its nest. A snowy plover and its nest are shown below. a. Compare the birth rate (number of eggs hatched) to the death rate in a population of snowy plovers that is increasing in size. (1 point) (1 point) 0 / 10000 Word Limit Question 19 b. In an initial population of 100 snowy plovers, there were 30 births and 20 deaths in one year. Based only on the birth and death rates, identify the expected size of the snowy plover population at the end of the year. (1 point)(1 point) 0 / 10000 Word Limit Question 20 c. At the end of the year, there were actually 80 snowy plovers in the population. Assuming there were no additional births or deaths, explain why the actual population size differed from the expected population size. (2 points)(2 points) 0 / 10000 Word Limit Question 21 d. Current efforts to conserve plover populations include building wire fences around their nests and making certain beaches off-limits to people during plover breeding season. Explain why making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences around plover nests. (2 points)(2 points) 0 / 10000 Word Limit Skip to navigation

1 answer

Here are the answers to your questions based on biological concepts regarding populations, communities, and conservation:

Question 1: The difference between a community and population is:
Populations refer to one species while community refers to all living species in an area.

Question 2: The direct effect on the population of mosquito larvae when mosquitofish are introduced:
Deaths increase.

Question 3: Which of the following would increase the size of a population of cardinals in a forest?
An increase in the birth rate of cardinals.

Question 4: Which of the following could explain the change in the graph regarding green sea turtle nests?
Humans passed laws preventing the collection of green sea turtles.

Question 5:

Natality: Increase
Mortality: Decrease
Immigration: Increase
Emigration: Decrease

Question 6: What is the new population at the end of the year?
The population would be 90 because the net change is minus ten.

Question 7: How do human actions affect biodiversity?
Biodiversity is decreased due to the damage that humans cause to natural habitats.

Question 8: What is the effect of global warming on biodiversity?
Many species are likely to become extinct as ecosystems disappear, such as Arctic ice and coral reefs.

Question 9: What is the carrying capacity of the fish population in the graph above?
1000 (Assuming from typical knowledge as the graph is not visible).

Question 10: Factors that can affect the carrying capacity of the pond for this fish species:
All that apply: Dissolved Oxygen supply, Food supply, Predators, Disease, Space, Human activities.

Question 11: Which of the following characteristics is most useful when classifying a eukaryote into a kingdom?
The organism’s structure and form.

Question 12: The genus name of the sugar maple (Acer saccharum) is:
Acer.

Question 13: Which of the following taxonomic levels have organisms that are most closely related?
Genus.

Question 14: Rana catesbeiana, the bullfrog, is most closely related to the:
Northern leopard frog, Rana pipiens.

Question 16: Identify the kingdom for an organism that is a unicellular autotrophic eukaryote:
Protista.

Question 17: Which two animals are most closely related?
(Use of evidence would depend on data from a table that is not provided).

Question 18 a: Compare the birth rate to the death rate in a population of snowy plovers that is increasing in size:
The birth rate must be higher than the death rate for the population to increase.

Question 19 b: Identify the expected size of the snowy plover population at the end of the year:
Expected population size is 110 (100 initial + 30 births - 20 deaths).

Question 20 c: Explain why the actual population size differed from the expected population size:
The actual population size could be lower due to factors like emigration, predation, or environmental stresses that weren't accounted for in the birth and death rates.

Question 21 d: Explain why making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences:
Making certain beaches off-limits protects the plovers and their nests from disturbances and potential abandonment, while fences may still allow for disturbances from other wildlife or humans outside the fenced areas. Additionally, allowing natural behaviors without interference is vital for conservation.

Feel free to clarify any of the questions or provide additional details for further assistance!

Ask a New Question or answer this question.