Environment science unit 7 LJ PDF

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Lecture notes from learning journal unit 7...

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7/11/2019

Graded Quiz Unit 3

Home ► My courses ► ENVS 1301 - AY2019-T5 ► 4 July - 10 July ► Graded Quiz Unit 3

Started on State Completed on Time taken Marks Grade

Wednesday, 10 July 2019, 1:18 PM Finished Wednesday, 10 July 2019, 1:30 PM 11 mins 27 secs 21.00/25.00 84.00 out of 100.00

Correct

Two of the most powerful forces of societal change in modern times have been:

Mark 1.00 out of 1.00

Select one: a. colonialism and scientic 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 scientic and technological development

A forest re is an example of __________ regulation. Correct Mark 1.00 out of 1.00

Select one: a. density-dependent b. density-independent c. r-selected d. K-selected

The correct answer is: density-independent

The inheritance of acquired characteristics states that: Correct Mark 1.00 out of 1.00

Select one: a. traits an organism develops during its own lifetime are determined by nature. b. traits an organism develops during its own lifetime are not passed on to ospring. c. traits an organism develops during its own lifetime are passed on to ospring. d. traits an organism develops during its own lifetime are determined by evolution.

The correct answer is: traits an organism develops during its own lifetime are passed on to ospring.

Correct

When an invasive species alters the community structure it is introduced to, what can the consequence be?

Mark 1.00 out of 1.00

Select one: a. extinction of economically important species b. reduced predation on some native species c. increased predation on some native species d. all of the above

The correct answer is: all of the above

Biodiversity refers to: Correct Mark 1.00 out of 1.00

Select one: a. the variety of life and its processes, including the variety of living organisms. b. the genetic dierences among living organisms. c. the communities and ecosystems of living organisms. d. all of the above

The correct answer is: all of the above

The majority of the water found on Earth is: Incorrect Mark 0.00 out of 1.00

Select one: a. ice b. water vapor c. fresh water d. salt water

The correct answer is: salt water

A good hypothesis must be: Correct Mark 1.00 out of 1.00

Select one: a. logical. b. based on scientic knowledge. c. falsiable. d. all of the above

The correct answer is: all of the above

Correct

Which statement best explains the relationship between a food chain and a food web?

Mark 1.00 out of 1.00

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.

Human populations have which type of survivorship curve? Correct Mark 1.00 out of 1.00

Select one: a. Type I b. Type II c. Type III d. Type IV

The correct answer is: Type I

Species that have many ospring at one time are usually: Incorrect Mark 0.00 out of 1.00

Select one: a. r-selected b. K-selected c. both r- and K-selected d. not selected

The correct answer is: r-selected

The environmental justice movement started because __________. Correct Mark 1.00 out of 1.00

Select one: a. corporate polluters were not serving jail time for breaking environmental laws b. Aldo Leopold published The Land Ethic c. the Environmental Protection Agency was not doing its job d. people realized that environmental damage is not equally distributed among all classes and racial groups; minority and low-income communities tend to contain a much larger share of the environmental damage (such as landlls, incinerators, toxic waste sites, etc.)

The correct answer is: people realized that environmental damage is not equally distributed among all classes and racial groups; minority and low-income communities tend to contain a much larger share of the environmental damage (such as landlls, incinerators, toxic waste sites, etc.)

Correct

The rst species to live on new land, such as that formed from volcanic lava, are called __________.

Mark 1.00 out of 1.00

Select one: a. climax community b. keystone species c. foundation species d. pioneer species

The correct answer is: pioneer species

Testing a(n) __________ involves performing a(n) __________. Correct Mark 1.00 out of 1.00

Select one: a. experiment, observation b. hypothesis, experiment c. observation, hypothesis d. conclusion, prediction

The correct answer is: hypothesis, experiment

Which is an example of a predator-prey relationship? Correct Mark 1.00 out of 1.00

Select one: a. The relationship between a bee and a ower. 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.

Correct

What is one main dierence between eukaryotic cells and prokaryotic cells?

Mark 1.00 out of 1.00

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 dierences between eukaryotic cells and prokaryotic cells.

The correct answer is: Eukaryotic cells are cells that contain a nucleus.

Competitive exclusion principle states that: Correct Mark 1.00 out of 1.00

Select one: a. Two species cannot occupy the same niche. b. Two males compete for access to females. c. One species cannot have two niches. d. Two species cannot occupy two niches.

The correct answer is: Two species cannot occupy the same niche.

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 identied. Select one: a. Ecolabeling b. Precautionary principle c. Market analysis d. Environmental justice

The correct answer is: Precautionary principle

Correct

Which term describes the process whereby toxic substances increase along trophic levels of an ecosystem?

Mark 1.00 out of 1.00

Select one: a. biomassication b. biomagnication c. bioentropy d. heterotrophy

The correct answer is: biomagnication

Examples of homologous structures include: Incorrect Mark 0.00 out of 1.00

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. none of the above

The correct answer is: the wings of a bat and the limbs of a cat.

Incorrect

Species with limited resources usually exhibit a(n) __________ growth curve.

Mark 0.00 out of 1.00

Select one: a. logistic b. logical c. experimental d. exponential

The correct answer is: logistic

Which is the best denition of a population? Correct Mark 1.00 out of 1.00

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.

Why is the tundra treeless? Correct Mark 1.00 out of 1.00

Select one: a. lack of sucient water b. permanently frozen ground c. winters too harsh d. too many res

The correct answer is: permanently frozen ground

Correct

Which statement best explains the relationship between decomposers and producers?

Mark 1.00 out of 1.00

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.

A country with zero population growth is likely to be __________. Correct Mark 1.00 out of 1.00

Select one: a. in Africa b. in Asia c. economically developed d. economically underdeveloped

The correct answer is: economically developed

Correct

Which of the following is best at showing the life expectancy of an individual within a population?

Mark 1.00 out of 1.00

Select one: a. quadrat b. mark and recapture c. survivorship curve d. life table

The correct answer is: life table

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