Which type of organism evolved first?

Which of the following statements if false?
A hypothesis is a tentative explanation of observations
Laws are well tested and accepted patterns of facts found in nature
A hypothesis must be substantiated by rigorous testing
In control groups scientists manipulate variables they want to test
All of the above is true

Which type of organism evolved first?
Photosynthetic bacteria
Photosynthetic plants
Animals
Anaerobic bacteria
Algae

Farmers in San Joaquin Valley form a group to ration water usage on their respective farms during times of a drought. This is a
Privatization
Self-regulation
Regulation
Self-management
Private regulation

Water has a high heat of vaporization meaning that evaporates easily
True or False

Which of the following is a false statement regarding the “Land Ethics”
The land ethics supports the idea that humans and the land are members of the same community
Focuses on the individual components of an ecosystem
Is a philosophy supported by Aldo Leopold
All of the above are true statements
All of the above are the false statements

Ecology is:
The study of interaction of organisms with other organisms
The study of biotic factors only
The study of how organisms are affected by their environment
The study of climate changes
Choices A and C

Which of the following human activities does not interfere with the phosphorous cycle?
Using phosphate-based detergent
Discharging municipal sewage
Mining large quantities of phosphate rock
Use of fossil fuels
All of the above are true statements

Humans strongly affect the water cycle through all of the following except:
Clearing vegetation for agriculture
Sprawling suburban developments in western states
Paving roads and parking lots
Excessive water withdrawal in arid regions
All of the above are true statements

Which of the following is a false statement regarding horse evolution?
The earliest ancestor of the modern horse was small bodied animal
The primitive horse had four toes on each foot
Modern horses’ foot structure was an adaptation to living in an open environment
The earliest ancestor of the modern horse had more enamel on the teeth because its diet consisted of gritty plant matter

Which of the following is the false statement about worm composting
red wiggler worms were used by the hotel in south Africa to break down kitchen waste
red wiggler worms helped fertilize the landscaping in the hotel of south Africa
red wiggler worms helped decrease the amount of waste going into landfills in south Africa
the red wiggler worms helped decrease the emissions of greenhouse gases
all of the above are true statements

Which of the following is not a characteristic of property of water
Water can acts as a solvent and can facilitate chemical reactions
Water molecules are cohesive
The hydrogen bonds in ice are more stable than liquid water
Hydrogen bonds are found within water molecule
All of the above statements are true

Which of the following ethics would be the least likely to support the development of the Alaskan wilderness areas?
Conservation ethic
Land ethic
Naturalism
Preservation ethic
Activist ethic

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