WorksheetsSemester Exam - Elijah Biddle
Total questions: 20
Worksheet time: 12mins
What color are the Electrons?
Red
Green
Yellow
Black
What color are the Protons?
Red
Green
Yellow
Black
What is an example of a chemical change?
Water being dumped out of a pan
Rust forming on a pan
Cheese being shredded
Paper ripping
What is an example of a physical change?
Burning wood
Cooking an egg
Rust on a pan
Water boiling
Do the number of reactants on the left side have to equal the number products on the right side?
No
Yes
Maybe
What kind of reaction is this: Baking Soda mixed with Vinegar that feels cold when touched.
Physical
Endothermic
Exothermic
None of the above
What is an ecosystem?
Every animal in existence
A logical community of interacting plants and their physical environment.
A biological community of interacting organisms and their physical environment.
Another word for the Trophic level
How are the two reactions of photosynthesis and cellular respiration related?
They are the opposite of each other
They are the exact same
They aren't related at all
What?
Which organism in an ecosystem supplies minerals and nutrients to the producers?
Humans
Consumers
Other producers
Decomposers
What is the first level of the trophic level?
Meat
Trees
Producers
Predators
What happens when a person eats an apple?
When a person eats an apple the molecules will release energy in the body’s cells.
When a person eats an apple the glucose will release energy in the body’s cells.
When a person eats an apple the glucose will release energy in the body’s molecules.
When a person eats an apple the energy will release glucose in the body’s cells.
During cellular ___ food and oxygen react to ___ water, ___ and energy.
Respiration, exhale, Carbon Dioxide
Respiration, Release, Carbon Dioxide
Change, Inhale, Oxygen
Carbone, Inhale, Food
What would be a primary consumer?
Rabbit
Grass
Aligator
Shark
How does density affect the growth of a population?
The higher the density, the more competition for resources and the lower the density, the less competition for resources.
The higher the density, the less competition for resources and the lower the density, the more competition for resources.
The lower the density, the more competition for resources and the lower the density, the less competition for resources.
The higher the population, the more competition for resources and the lower the density, the more competition for resources.
What happens to an ecosystem when a population becomes overpopulated?
Animals that rely on the same resources as the underpopulated organism will decrease.
Organisms that rely on the same resources as the overpopulated organism will decrease.
Organisms that rely on the same resources as the underpopulated organism will increase.
Organisms that rely on the same resources as the overpopulated organism will increase.
What would happen if abiotic factors were removed from an ecosystem?
Producers would grow better making more oxygen for the animals in the ecosystem.
Producers would grow better making less oxygen for the animals in the ecosystem.
Producers would grow worse making less oxygen for the animals in the ecosystem.
Producers would grow worse making more oxygen for the animals in the ecosystem.
What is the niche of a plant?
Decomposer
Producer
Trophic level 2
Predators
Which of the following is an example of mutualism?
True or False: When a new species is introduced into an ecosystem, the population of their prey species will decrease.
True
False
If frogs survived mainly on flys and there was fly plague that eliminated their food source, what would happen to the frogs?
The frog population would increase
The frog population would decrease
The frog population would sky rocket
The frog population would stay the same
