WorksheetsAg Biology Fall Semester Final Study Guide – Extracted Questions
Total questions: 56
Worksheet time: 28mins
What are SAE’s? Choose the option that correctly expands the acronym.
Supervised Agricultural Experience
Scientific Agricultural Experiment
Student Agriscience Enterprise
Standards of Agricultural Education
Which of the following are types of SAE projects? Select all that apply.
Placement
Entrepreneurship
Research
In Class Instruction
Which components make up the Three Circle of Ag Education (Three Circle Agreement)? Select all that apply.
FFA
Classroom/Laboratory Instruction
SAE
Community Service
What is the official FFA Motto?
Learning to Do, Doing to Learn, Earning to Live, Living to Serve
Preparing for Leadership, Serving the Community, Growing our Future
Knowledge to Work, Skills to Lead, Service to All
Learn by Doing, Lead by Serving, Earn by Working
What does AET stand for?
Agricultural Experience Tracker
Agriscience Education Tool
Agri-Enterprise Training
Agricultural Engagement Tracker
How many hours does your project need to have journaled by May?
20 hours
30 hours
40 hours
50 hours
What is our Marysville FFA Chapter Code?
CA0920
CA0146
CA1345
CA2048
How many hours of Community Service are required per semester?
5 hours
10 hours
15 hours
20 hours
What does C.E.R stand for? Choose the option that correctly expands the acronym.
Claim, Evidence, Reasoning
Cause, Effect, Resolution
Collect, Evaluate, Report
Concept, Example, Review
What was the primary purpose of the Yuba River Unit?
To investigate watershed health, salmon populations, and impacts of mining on the river system
To memorize state geography and county boundaries
To study only historical gold prices in California
To practice lab safety procedures unrelated to fieldwork
Over time, what has happened to the salmon numbers in the Yuba River?
They have remained the same
They have increased
They have decreased
They show no measurable trend
Over time, what has happened to the salmon size in the Yuba River?
Average size has decreased
Average size has increased
Average size has remained the same
Size shows no measurable trend
What is a watershed?
An area of land where all water drains to a common outlet such as a river or lake
A structure that stores water for a city
A region with frequent rainfall
A government office that manages water rights
How do we benefit from the Yuba Watershed? Select all that apply.
Drinking and irrigation water supply
Hydroelectric power and recreation opportunities
Habitat supporting fisheries like salmon
No significant benefits to communities
How does the health of the Yuba River impact the salmon?
Water quality and habitat conditions directly affect salmon survival and reproduction
River health has no effect on salmon
Only ocean conditions matter for salmon
Salmon size determines river health, not the other way around
Why is gold found in the Yuba Watershed?
Gold eroded from quartz veins in the Sierra Nevada and was transported by streams into the watershed
Gold forms from algae in slow-moving water
Gold is produced by recent volcanic eruptions in the river
Gold is created by chemical reactions in modern dams
What are gold-rich veins, and how are they formed?
Fractures in rock filled by hydrothermal fluids depositing minerals such as quartz and gold
Layers of sediment laid down by annual floods
Pockets of gas that crystallize into metal
Veins in plants that accumulate minerals over time
What is a placer deposit?
An accumulation of valuable minerals like gold concentrated by flowing water and gravity in stream beds
A deposit formed by volcanic magma solidifying underground
A manufactured storage of ore in a warehouse
A chemical precipitate formed in lakes by evaporation
What is gold panning?
A method using a shallow pan to separate gold from sediment in flowing water
A process of melting gold ore in a furnace to remove impurities
An industrial technique that uses cyanide to extract gold from hard rock
A way to survey riverbeds for gold using sonar equipment
Define placer mining.
Mining of valuable minerals from streambed deposits using water-based separation
Deep-shaft extraction of ore from underground veins
Open-pit removal of overburden to access hard rock ore
Chemical leaching of metals from crushed rock
How was mercury used in mining?
It was added to bind with fine gold particles to form an amalgam for recovery
It was used to harden steel tools for digging
It was burned as a fuel to power dredges
It was sprinkled on soils to prevent erosion around mines
What is latitude, is it horizontal or vertical, and what is latitude 0°?
Lines that run east–west (horizontal) measuring north–south; 0° is the Equator
Lines that run north–south (vertical) measuring east–west; 0° is the Prime Meridian
Positions measured from the poles; 0° is the Arctic Circle
Arcs measured along mountain ranges; 0° is the International Date Line
What is longitude, is it horizontal or vertical, and what is longitude 0°?
Lines that run north–south (vertical) measuring east–west; 0° is the Prime Meridian
Lines that run east–west (horizontal) measuring north–south; 0° is the Equator
Distances measured from latitudinal bands; 0° is the Tropic of Cancer
Arcs measured from ocean currents; 0° is the International Date Line
How has the Yuba River changed since the hunting and gathering time period? Use evidence from what you have learned.
Extensive mining, dams, and water diversions have altered channels and habitats, reducing salmon access
The river has remained largely untouched with no significant human impacts on flow or habitat
Seasonal floods have eliminated all fish species while increasing forest cover
Urban development eliminated the river entirely, replacing it with reservoirs only
Over the years, the Yuba Watershed has been used for Native American tribes, wildlife homes, mining, fishing, water diversion for agriculture, and recreational boating/swimming. Anytime we use a natural resource, we leave lasting environmental impacts. What in your mind are the worst impacts?
Habitat fragmentation from dams and diversions
Sediment and contamination from historical mining
Loss of native species and altered food webs
Minor temporary changes that quickly disappear without long-term effects
Do you believe those environmental impacts might have an effect on the salmon population? Explain your thoughts.
Yes, barriers and degraded water quality reduce spawning success and survival
No, salmon are unaffected by dams or pollution
Impacts only increase salmon numbers by creating more habitat
Salmon populations depend only on ocean conditions, not rivers
What does WQI stand for?
Water Quality Index
Watershed Quantity Indicator
Wetland Quality Inventory
Water Quota Initiative
What are the nine water quality indicators? Define what they are next to each water quality indicator.
pH
Dissolved oxygen
Turbidity
Temperature
Nitrates
What pH range is optimal for most organisms?
About 6.5–8.5
About 1–3
About 4–5
About 9.5–11
What is a food web?
A network of interconnected food chains showing energy flow among organisms
A single linear pathway of energy from producer to top predator
A chart of only nutrient cycles without organisms
A map of river channels used for fishing
If we remove the salmon from this food web, how would it impact the other species in this food web? Give examples.
Predators decline and nutrient inputs from salmon carcasses drop, while some prey species may initially increase
Predators increase and river nutrients rise dramatically
No meaningful changes occur in any species
Plant producers immediately disappear but predators grow
What are trophic levels?
Positions in a food web based on how organisms obtain energy (producers, consumers, etc.)
Geographic layers of soil horizons
Levels of river depth measured in meters
Ranks of species based on population size
What percent of energy moves up each trophic level?
About 10%
About 1%
About 50%
About 90%
What is biomagnification?
The increase in concentration of persistent pollutants in organisms at higher trophic levels
The growth of organisms to unusually large body sizes in polluted waters
The dilution of contaminants as they move through ecosystems
The magnification of light in aquatic habitats
Why are salmon decreasing in the Yuba River? Use evidence.
Dams, habitat degradation, altered flows, and pollution hinder migration and spawning
Natural cycles alone reduce salmon with no human impacts
Excessive predator numbers caused solely by ocean food webs
Increased rainfall washes more nutrients, boosting salmon populations
What does sustainability mean in agriculture?
Meeting current food needs while maintaining environmental health, economic viability, and social equity for the future
Maximizing short-term yields regardless of long-term impacts
Relying only on synthetic fertilizers to increase production
Producing only one crop year after year
What will the world population be in 2050?
Around 9.7 billion
Around 3 billion
Around 6 billion
Around 15 billion
What are the three components of the sustainability barrel?
Environmental, economic, and social components
Political, military, and cultural components
Technological, agricultural, and industrial components
Physical, chemical, and biological components
Why is something not sustainable if it is missing a part of the sustainability barrel?
Because the weakest or missing component limits overall performance, like a barrel with a short stave
Because sustainability depends only on technology, not multiple components
Because extra components make systems inefficient
Because removing parts always increases capacity
What is a ripple effect?
A chain reaction where one change spreads and causes additional effects throughout a system
A physical wave pattern that only occurs in oceans
A random event with no consequences
A process limited to economics and not ecology
How are nutrients depleted from the soil?
Crop harvest removes nutrients in biomass
Erosion carries topsoil and nutrients away
Leaching washes soluble nutrients below root zones
Solar radiation consumes nutrients directly
Where do plant nutrients come from?
Soil minerals and weathering
Organic matter and decomposition
Fertilizers or amendments added by humans
Atmospheric inputs such as nitrogen fixation
What is N-P-K and why are they important?
Nitrogen, phosphorus, and potassium; they are primary macronutrients essential for plant growth
Nickel, palladium, and krypton; they are trace elements used in lab testing
Nitrogen, protein, and keratin; they build plant hair-like roots
Neon, phosphine, and potassium; they are greenhouse gases needed by plants
What does nitrogen provide to plants?
Primarily promotes leafy, vegetative growth and supports protein/chlorophyll formation
Strengthens root systems and stimulates flowering
Improves drought tolerance and fruit quality
Provides micronutrients needed for enzyme cofactors only
What does phosphorus provide to plants?
Encourages strong root development and energy transfer, aiding flowering and fruiting
Controls stomatal opening to regulate water use
Adds structural calcium to cell walls
Primarily increases leaf color and size
What does potassium provide to plants?
Regulates water use and enzyme activity, improving stress tolerance and overall quality
Directly supplies nitrogen for amino acid formation
Creates new root tips through cell division
Provides phosphorus for ATP production
What is nitrogen fixation?
The conversion of atmospheric N2 into ammonia or related compounds by certain bacteria and processes
The binding of nitrogen into plant DNA during mitosis
The absorption of nitrate directly through leaf surfaces
The removal of nitrogen from soil by erosion
What is the 4R Nutrient Stewardship?
Right source
Right rate
Right time
Right place
Right price
What can happen if farmers add too many nutrients?
Nutrient runoff and leaching can pollute waterways and cause algal blooms
Plants always grow faster with no downsides
Soils permanently gain infinite fertility
Seeds lose the ability to germinate
Why is soil more than just dirt?
It is a living system of minerals, organic matter, water, air, and organisms that supports plant growth
It is mainly dust particles with no biological activity
It is only a storage material for roots with no nutrients
It is a uniform chemical compound similar to table salt
What does a seed need to grow?
Water
Oxygen
Suitable temperature
Light (for some species)
High levels of carbon dioxide inside the seed
What would happen if a frost hits almonds before harvest, considering supply, demand, and price?
Supply decreases, demand remains similar, and market price increases
Supply increases, demand decreases, and price falls
Supply and demand both increase, causing price to drop
Supply stays constant, demand rises, and price stays the same
What are the uses of land that is deemed for agriculture?
Crop cultivation
Livestock grazing and dairying
Orchards and vineyards
Urban housing developments
Conservation areas with no production allowed
What percentage of Earth's surface is used for agriculture?
About 8%
About 29%
About 37%
About 50%
How are Best Management Practices applied to land usage?
By implementing conservation practices (e.g., erosion control, buffer strips, nutrient management) to protect soil and water while optimizing inputs
By maximizing field size and removing all vegetation near waterways
By applying fertilizers at the highest possible rates to ensure maximum yields
By avoiding any monitoring or record-keeping of inputs and soil conditions
Which careers contribute to producing a slice of cheese? Select all that apply.
Dairy farmer
Veterinarian
Milk hauler/transport driver
Cheesemaker/food processing technician
Video game designer
