WorksheetsScientific Method - Populations TEST
Total questions: 20
Worksheet time: 5hrs 0mins
A student wanted to see which color board reflects more light. They test this by taking the temperature of the board. The board that reflects the most light will have the lowest temperature. They use 2 white boards, one with light and one without & 2 black boards, one with light and one without.
What is NOT tested or the control variable?
The color of the board
The board with no light
The board with light
The amount of light
What is the dependent variable?
Temperature
Grams of Solute
Amount of water
Time
Using the rule of 10, what percentage of the original energy can be found at the THIRD trophic level in this diagram?
( *NOTE* Producers have 100%)
1
100
10
0
Cougars are predators that often eat weakened or diseased animals. This is a description of the cougar's
Habitat - Area or place where an organism lives
Community - A group of interacting species living in the same place
Niche - How an organism lives and interacts with other organisms
Population - Interacting organisms of the same species
As matter and energy move from grass to grasshopper to shrew, the amount of available energy____________
decreases
increases
stays the same
increases then decrease
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
10K Cal
100K Cal
1K Cal
1000K Cal
The diagram represents a model of a food pyramid. Which statement best describes what happens in this food pyramid?
More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.
Energy (10%) is lost to the environment (from the producer to top consumer level) therefore, less mass can be supported at each higher level.
When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels
Organisms decay at each level, and thus less mass can be supported at higher levels
What is the best role of bacteria and fungi in this food web?
Decomposer
Autotroph
Carnivore
Producer
An organism that cannot make its on food is called a(n):
Plant
Heterotroph
Producer
Autotroph
Which order is correct?
A-Community B-Ecosystem C-Biome D- Population
A-Population B-Community C-Ecosystem D-Biome
A-Ecosystem B-Population C-Community D-Biome
A-Biome B-Ecosystem C-Population D-Community
This graph suggests that from 1840 to 1920, the carrying capacity for sheep in Tasmania was approximately —
0.75 Million
2.25 Million
1.75 Million
1.0 Million
At which of the following can exponential growth be seen within the deer population
4 months
7 months
10 months
12 months
Which of the following defines the term carrying capacity?
The maximum population size of a biological species
Where organisms live
The organisms in a community
How organisms interact with each other
Ralph is concerned about the number of ants in his kitchen. He wonders if cleaning the kitchen more often would fix the problem.
What is the best hypothesis for this situation?
If the kitchen is cleaned once a week (instead of once a month,) then the number of ants will be fewer
If the kitchen is cleaned once a year, then the number of ants will go down?
The filthiness of the kitchen is causing the ant infestation.
If the kitchen is cleaned, then the number of ants will increase.
What biome are we as Virginian's living in?
Temperate Deciduous Forest
Tundra
Savanna
Tropical Rain Forest
The diagram above represents a community undergoing succession. Each stage is marked with a number from 1-8. Identify the stage that represents the Pioneer or "beginning" Species.
Stage 8
Stage 6
Stage 1
Stage 5
Each drawing represents different stages in community succession within the state of Virginia. Which of the following drawings represents the climax (maximum or largest) community in this succession pattern?
F
G
H
J
Sea Lamprey are a jawless fish that feed on other aquatic animals, they are considered a pest in many lakes. An ecologist wanted to determine if a population of Trout fish was affected by the Lamprey fish.
He studied the Trout fish for 6months and discovered that the Lamprey fish were feeding on and negatively affecting the Trout.
Which of the following best describes the symbiotic relationship between the trout and the lamprey?
Parasitism
Mutualism
Commensalism
Competition
Which symbols best describe mutualism?
+,+
+,-
+,0
-,0
Some plant roots grow with mycorrhizal fungi. The fungi absorb water and minerals and pass them on to the plant and receive carbohydrates from the plant. In other words the plant gets water and minerals and the Fungi gets carbohydrates.
This is an example of —
Mutualism
Commensalism
Parasitism
Competition
