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WorksheetsEOC 1.0
Total questions: 21
Worksheet time: 11mins
The diagram on the right shows a Chesapeake Bay Waterbird Food Web. Which of the following organisms from the food web are considered secondary consumers? (Energy Flow, L.17.9)
osprey
bivalves
sea ducks
benthic invertebrates
The graph below represents the amount of available energy at successive nutrition levels in a particular food web. The X’s in the diagram represent the amount of energy that was most likely ___.
changed into inorganic compounds
retained indefinitely by the herbivores
recycled back to the producers
released as heat to the environment
Which statement best describes the flow of energy as it passes through the organisms in the pyramid?
Energy flows through the organisms from bottom to top and decreases at each level.
Energy flows through the organisms from bottom to top and increases at each level.
Energy flows through the organisms from top to bottom and increases at each level.
Energy flows through the organisms from top to bottom and decreases at each level
Tiny droplets of water in the air collect on the outside of a cold drink and form clouds high in the atmosphere. Which process is involved when water from the air turns into its liquid form?
Precipitation
Evaporation
Transpiration
Condensation
The diagram to the right shows the nitrogen cycle. Animals need nitrite (NO2 ) to make proteins. Nitrogen (N2 ) is found in the air but is not in a form that animals can use. Through the nitrogen cycle, nitrogen from the atmosphere becomes nitrite. Which of these can be concluded about the importance of bacteria in the nitrogen cycle?
Bacteria are important because they make nitrites that fungi need.
Bacteria are important because they change nitrogen into nitrites that animals need.
Bacteria are important because they allow plant roots to absorb nitrites from the air
Bacteria are important because they decompose plant matter that compete with living plants for nitrites
A biologist compares how different ecosystems undergo succession. She divides the series of events happening during succession into different stages. What feature is found only in secondary succession but not in primary succession?
the lack of pioneer species in the second stage
the presence of pioneer species in the final stage
the presence of trees and large plants in the final stage
the presence of soil in the first stage
Jill made the table below during her research on aquatic zones. Based on her description of the ocean zones, infer why there are no aquatic plants and phytoplankton that live in the benthic zone of the ocean?
The ocean floor contains many decomposers.
Most sunlight is absorbed before reaching this level.
Water is a limiting factor.
The temperature in this zone is extremely low
Base your answer(s) to the following question(s) on the graph below and on your knowledge of biology. The graph shows the growth of a population of rabbits in a specific ecosystem. Which environmental factor could have caused the change indicated at A?
Increase predation by herbivores
Increased availability of food
Increased competition among carnivores
Increased number of decomposers
Some small fish attach themselves to the body of a shark without harming it and feed upon its leftover food. The relationship between shark and the fish is an example of ___.
Commensalism
Mutualism
Competition
Parasitism
The graph below shows changes in a caribou population over time. Which of the following is a possible explanation for the stabilization of the caribou population?
An equal number of deaths and births
An unequal number of deaths and births
An unequal number of immigrants and deaths
An equal number of immigrants and births
Turtles are classified in the order Testudines. Some turtles are aquatic and others are terrestrial. Aquatic turtles have webbed feet and short claws but terrestrial turtles do not. Which of the following statements best explains why aquatic turtles and terrestrial turtles are classified in the same order but have such different feet?
Aquatic turtles evolved from fish, and terrestrial turtles evolved from reptiles.
Aquatic turtles and terrestrial turtles have similar body plans, but they grow at different rates.
Aquatic turtles interbred with different species and terrestrial turtles bred only within their own species.
Aquatic turtles and terrestrial turtles evolved from a common ancestor, but they have adapted to different environments
How is natural selection in the evolution of longer necks in giraffes best explained?
Shorter‐necked giraffes were killed by long‐necked giraffes.
Shorter‐necked giraffes were killed by long‐necked giraffes. B. Giraffe necks grew longer because of the bone structure of the animals.
Giraffes with longer necks survived because they were better suited to the environment.
Long‐necked giraffes mated only with other long‐necked giraffes
A patient tells his doctor that his family seems to have strep throat and sinus infections all the time and that he doesn’t understand this because they are careful to use antibiotic soaps, detergents, and gels throughout the house. Which of the following would be a good hypothesis the doctor could use to explain this?
The bacteria that are present in the house have developed a resistance to antibiotics, so the treatment of the illnesses is ineffective
The family is unable to develop a resistance to the bacteria causing the illnesses because they overuse antibiotic soaps in the household
The family is probably using their air conditioning too much, and the low temperatures are causing their illness in spite of the antibiotic soaps
The bacteria that the family is exposed to outside of the house are more harmful to them because they aren’t exposed to them in their own household.
Recently, locations considered temperate have noticed an uptick in mosquito-borne illnesses such as West Nile Virus, Malaria, and Dengue fever. Which of the following best explains why these areas are experiencing an invasion of mosquitos carrying deadly pathogens?
global warming
natural disasters s
decreasing levels of immigration
built up immunity by people in regions normally affected by mosquito-borne illness
During an outbreak of severe flu, government officials cancel a soccer game that many people planned to attend. Which of these provides a beneficial medical reason for the government to cancel the soccer game?
to limit the spread of the flu
to spread panic about the cause of the flu
to change the outcome of the soccer game
to decrease the spread of false rumors about the flu
What disease category does public food contamination/poisoning fall under?
environmental
chemical
genetic
pathogenic
A 2013 study found that Escherichia coli are 50% resistant to the most common antibiotics used to treat the infections caused by the strain. Which would be the best precaution for reducing antibiotic resistant E. coli infections?
People should eat fresh vegetables instead of meat products
Individuals should thoroughly cook meat and wash fresh produce before eating.
Patients should only take half of their prescribed medications for E. coli infections. People should eat fresh vegetables instead of meat products
Doctors should prescribe higher doses of medication used to treat E. coli infections
