What percentage of the people in the United States are farmers? correct answers 2
Careers in agriscience include which of the following? correct answers processing and recreation
and food production
By the year 2010, the world population of humans is estimated will be correct answers 7 billion
What is the meaning of the Greek word bios? correct answers life
The science involved in the cultivation, propagation, processing and marketing of things like
flowers and vegetables is known as correct answers horticulture
In genetic terms, what is the goal of the process of mapping? correct answers to identify the
location of a gene on a chromosome
Which of the following terms means "life" or "living"? correct answers bio
Gregor Johann Mendel discovered the effects of genetics on characteristics using which of the
following types of plant? correct answers pea
The pale yellow element occurring widely in nature is correct answers sulfur
Which of the following is a colorless, radioactive gas formed by the disintegration of radium?
correct answers radon
Chlorofluorocarbons are a group of compounds consisting of which of the following? correct
answers chlorine, fluorine, carbon, and hydrogen
Plants give off oxygen through the process known as: correct answers photosynthesis
Careers in air quality are available with which service? correct answers weather
What is the most abundant element in air? correct answers nitrogen
Insects and other organisms have adapted to the pollution in the air through a process known as:
correct answers natural selection
The greenhouse effect and global warming are: correct answers controversial
The material that remains after a plant dies or is harvested is called: correct answers plant residue
The bodies of young plants and animals consist of about 90 percent of which of the following?
correct answers water
, A universal solvent serves to: correct answers dissolve or change most other materials
Which term describes drinking water that is free of harmful chemicals? correct answers potable
The water cycle is a natural process by which water moves in a circular motion from: correct
answers oceans to land and back to oceans
Which type of water adheres so tightly that plants cannot use it? correct answers hygroscopic
Which of the following is not an area of focus by the USDA to prevent contamination of
groundwater by crop pesticides? correct answers management of local water sewage systems
The addition of water to plants to supplement the water provided by rain or snow is called:
correct answers irrigation
The attempt to alter the crop environment to prevent or reduce pest damage is known as _____
control. correct answers cultural
A pest's ability to repopulate after control has been eliminated or reduced is called: correct
answers pest resurgence
It generally takes how long for the release of sterile insects to completely eradicate harmful
insects? correct answers 2 or 3 years
_____ is the union of the pollen and the stigma. correct answers Pollination
In plant breeding, what is removed from the plant to prevent natural pollination? correct answers
anther sac
The area of cell division on a root is at the: correct answers apical meristem
In some varieties of wheat, stem length has been reduced, which reduces or eliminates: correct
answers lodging
A compound leaf is made of which of the following? correct answers three to seven leaflets
How many elements are essential for plant growth? correct answers 16
Plant physiologists are responsible for studying and researching which of the following? correct
answers osmosis, nutrient uptake, translocation, respiration, photosynthesis, food movement, and
food storage
Citrus growers and the U.S. Horticultural Research Laboratory have been studying the disease
citrus blight since: correct answers 1892
A hybrid plant is obtained by: correct answers crossbreeding