Difference Between Eukaryotic Cells and Prokaryotic Cells

Question 1 Correct Mark 1.00 out of 1.00 What is one main difference between eukaryotic cells and prokaryotic cells? Select one: a. Eukaryotic cells are cells that contain a nucleus. b. Prokaryotic cells have many internal structures, whereas eukaryotic cells are simpler. c. Prokaryotic cells can be large, whereas eukaryotic cells are usually smaller. d. All of the above are differences between eukaryotic cells and prokaryotic cells. The correct answer is: Eukaryotic cells are cells that contain a nucleus. Question 2 Correct Mark 1.00 out of 1.00 Where would you expect to find the most photosynthesis in an ocean biome? Select one: a. aphotic zone b. abyssal zone c. benthic realm d. intertidal zone The correct answer is: intertidal zone Question 3 Correct Mark 1.00 out of 1.00 Trees and marine invertebrates exhibit a: Select one: a. type III survivorship curve b. type I survivorship curve c. type II survivorship curve d. type IV survivorship curve The correct answer is: type III survivorship curve Question 4 Correct Mark 1.00 out of 1.00 The main limiting factors in an aquatic biome are: Select one: a. the availability of sunlight. b. the concentration of dissolved oxygen and nutrients in the water. c. the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water. d. the availability of sunlight and the concentration of dissolved carbon and nutrients in the water The correct answer is: the availability of sunlight and the concentration of dissolved oxygen and nutrients in the water. Question 5 Correct Mark 1.00 out of 1.00 The zone with the highest productivity and biodiversity of the ocean is called: Select one: a. photic b. neritic c. aphotic d. pelagic The correct answer is: neritic Question 6 Correct Mark 1.00 out of 1.00 Two persons are discussing the responsibility of humans to the environment. The first persons says, “We should preserve nature for its inherent value.” The second says, “We should conserve resources for the good of the public.” Which two persons would have made these comments, respectively? Select one: a. Muir; Pinchot b. Hetchy; Muir c. Emerson; Thoreau d. Pinchot; Hetch The correct answer is: Muir; Pinchot Question 7 Correct Mark 1.00 out of 1.00 Which statement best explains the relationship between a food chain and a food web? Select one: a. A food web includes many intersecting food chains. b. A food chain includes many intersecting food webs. c. A food chain leads into a food web. d. A food web and food chain begin and end with the same organisms The correct answer is: A food web includes many intersecting food chains. Question 8 Correct Mark 1.00 out of 1.00 Which statement best explains the relationship between decomposers and producers? Select one: a. Decomposers use the molecules that producers release back to the environment. b. Producers use the molecules that decomposers extract from the environment. c. Producers use the molecules that decomposers release back to the environment. d. Decomposers use the molecules that producers extract from the environment. The correct answer is: Producers use the molecules that decomposers release back to the environment. Question 9 Correct Mark 1.00 out of 1.00 A country with zero population growth is likely to be __________. Select one: a. in Africa b. in Asia c. economically developed d. economically underdeveloped The correct answer is: economically developed Question 10 Correct Mark 1.00 out of 1.00 The process of photosynthesis can BEST be described as: Select one: a. using the energy in sunlight to make food. b. using the energy in food to make ATP. c. using the energy in sunlight to make oxygen and water. d. using the energy in food to make sunlight. The correct answer is: using the energy in sunlight to make food. Question 11 Correct Mark 1.00 out of 1.00 Which type of country has the greatest proportion of young individuals? Select one: a. economically developed b. economically underdeveloped c. countries with zero population growth d. countries in Europe The correct answer is: economically underdeveloped Question 12 Correct Mark 1.00 out of 1.00 Biodiversity refers to: Select one: a. the variety of life and its processes, including the variety of living organisms. b. the genetic differences among living organisms. c. the communities and ecosystems of living organisms. d. all of the above The correct answer is: all of the above Question 13 Correct Mark 1.00 out of 1.00 Which of the following is not a way that humans have increased the carrying capacity of the environment? Select one: a. agriculture b. using large amounts of natural resources c. domestication of animals d. use of language The correct answer is: using large amounts of natural resources Question 14 Correct Mark 1.00 out of 1.00 Which is the best definition of a population? Select one: a. The unit of natural selection and evolution. b. A group of organisms of the same species that live in the same area. c. All the species that live in the same area. d. A group of species that live in the same area. The correct answer is: A group of organisms of the same species that live in the same area. Question 15 Correct Mark 1.00 out of 1.00 __________ seeks to minimize the limitations of a risk assessment based regulatory policy by encouraging a search for alternatives whenever a potentially hazardous chemical is identified. Select one: a. Ecolabeling b. Precautionary principle c. Market analysis d. Environmental justice The correct answer is: Precautionary principle Question 16 Correct Mark 1.00 out of 1.00 Examples of analogous structures include: Select one: a. the wings of a bat and bird. b. the wings of a bat and the limbs of a cat. c. the limbs of a cat and limbs of a tortoise. d. all of the above. The correct answer is: the wings of a bat and bird. Question 17 Correct Mark 1.00 out of 1.00 The land ethic __________. Select one: a. suggests that citizens be required to recycle b. changes the role of Homo sapiens from conqueror of the land-community to plain member and citizen of it c. suggests that countries should be classified as either developing or developed. The correct answer is: changes the role of Homo sapiens from conqueror of the land-community to plain member and citizen of it Question 18 Correct Mark 1.00 out of 1.00 A forest fire is an example of __________ regulation. Select one: a. density-dependent b. density-independent c. r-selected d. K-selected The correct answer is: density-independent Question 19 Correct Mark 1.00 out of 1.00 Two of the most powerful forces of societal change in modern times have been: Select one: a. colonialism and scientific and technological development b. sustainable development and reforestation c. exploitation and consumption of resources d. social equality and population explosion The correct answer is: colonialism and scientific and technological development Question 20 Correct Mark 1.00 out of 1.00 Human populations have which type of survivorship curve? Select one: a. Type I b. Type II c. Type III d. Type IV The correct answer is: Type I Question 21 Correct Mark 1.00 out of 1.00 The current mass extinction, caused primarily by habitat loss due to human actions is called: Select one: a. fourth extinction b. fifth extinction c. sixth extinction d. seventh extinction The correct answer is: sixth extinction Question 22 Correct Mark 1.00 out of 1.00 Which is an example of a predator-prey relationship? Select one: a. The relationship between a bee and a flower. b. The relationship between a hen and a rooster. c. The relationship between a lion and a zebra. d. The relationship between a duck and a pond of water. The correct answer is: The relationship between a lion and a zebra. Question 23 Correct Mark 1.00 out of 1.00 The conditions for Hardy-Weinberg equilibrium include that: Select one: a. only a few individuals move into or out of the population. b. no new alleles are being created. c. non-random mating is occurring. d. all of the above The correct answer is: no new alleles are being created. Question 24 Correct Mark 1.00 out of 1.00 Which statement is correct concerning natural selection? Select one: a. Natural selection occurs when there are differences in fitness among members of a population. b. Natural selection occurs when there are differences in gene flow among members of a population. c. Natural selection occurs when there are differences in genetic drift among members of a population. d. all of the above The correct answer is: Natural selection occurs when there are differences in fitness among members of a population. Question 25 Incorrect Mark 0.00 out of 1.00 Examples of homologous structures include: Select one: a. the wings of a bat and bird. b. the wings of a bat and the limbs of a cat. c. the limbs of a cat and limbs of a tortoise. d. All of the above The correct answer is: All of the above 