WorksheetsPart 1 Semester 1 Final Review Honors 2024
Total questions: 35
Worksheet time: 21mins
A rabbit population is near the carrying capacity of its ecosystem. If the population density of rabbits in an area were to increase, what direct effect would it most likely have?
There would be more food available to the rabbits.
The rabbit population would die off immediately.
The rabbits would have greater competition for resources.
An insect population feeds on a single species of plant. The carrying capacity of the insect population is dependent on food availability. Recently, a fire destroyed 80% of the plants that the insects feed upon. By what factor will the carrying capacity change?
0.2
0.8
2
A scientist wants to study primary succession. After which ecological event should she begin her research?
A fire burns down half of a forest.
A hurricane devastates a coral reef.
A retreating glacier exposes bare rock.
Which of these best describes a climax community?
a growing forest with varied tree and shrub species after a wildfire
a balanced population of clownfish and sea anemones in a coral reef ecosystem
a booming population of plankton after farming that increased fertilizer runoff
A scientist is studying the factors that affect a population of mammals. Which scenario will it increase the population?
The birth rate and death rate in the population are roughly equal
A deadly disease is spreading among predators of the population.
A natural disaster destroys resources the population needs for survival.
A scientist is studying the factors that affect a population of mammals. Which scenario will it decrease the population?
The birth rate and death rate in the population are roughly equal
A deadly disease is spreading among predators of the population.
A natural disaster destroys resources the population needs for survival.
A scientist is studying the factors that affect a population of mammals. Which scenario will it stabilize the population?
The birth rate and death rate in the population are roughly equal
A deadly disease is spreading among predators of the population.
A natural disaster destroys resources the population needs for survival.
Of the following which are primary succession?
A forest fire that burns for days
A hurricane that devastates a coral reef system
A retreating glacier that exposes bare rock and eroded sediment
A large volcanic eruption that leaves many acres of hardened lava
Of the following which are secondary succession?
A forest fire that burns for days
A hurricane that devastates a coral reef system
A retreating glacier that exposes bare rock and eroded sediment
A large volcanic eruption that leaves many acres of hardened lava
Of the following which are density dependent limiting factors.
A large number of moose die from a rare bacterial infection that spreads through the population.
Climate change causes the polar bear population to decrease because of a lack of polar ice.
The amount of nitrogen in the soil becomes abundant; therefore, fewer plants are able to survive.
A researcher studied the population of two herbivore species, gray-sided voles and lemmings, in one area. During this time, there was no immigration or emigration by the lemmings or the voles in the area. The graph shows the population of each species in the area between 1979 and 1997. Which of the statements are supported by the data in the graph?
A predator of the voles was introduced to the area in 1987.
A competitor of the lemming was introduced to the area in 1979.
There were more deaths than births among lemmings between 1984 and 1991.
The European green crab is an invasive species. This crab has recently found homes in salt marshes and the mouths of rivers in Washington. A biologist is collecting data about the impact of an invasive green crab. Which experimental design will provide accurate, reliable data for evidence?
Count invasive crabs in quadrats at a single salt marsh and use the data to predict what is happening at all salt marshes.
Count and record observations on the populations of invasive crabs and native organisms in quadrats at a variety of salt marshes and estuaries.
Count and record observations on the populations of invasive crabs and native organisms at an entire salt marsh and use that to predict what is happening in all salt marshes.
A student is making a model to show the levels of organization of life systems on Earth. Which is the smallest?
The regions of Earth populated by living organisms
The collection of populations living in a certain area
An individual animal, plant, or single-celled life form
Organisms of the same species that live in the same area
Which statement best explains the role of energy in cellular respiration?
The cell destroys energy by breaking down large molecules.
The cell creates stored chemical energy by capturing solar energy.
The cell moves stored chemical energy to different chemical bonds.
Brenda ran a race. During the race, she began to breathe heavily, and her muscles began to burn. Which statement explains why Brenda felt a burning?
The cells did not have enough oxygen.
The cells did not have enough glucose.
The cells had too much carbon dioxide.
Zoe is comparing the molecules that are the inputs and outputs of photosynthesis. Select the words from the drop-down lists to correctly complete the sentence. Compared with the inputs of photosynthesis, the molecules that are outputs of photosynthesis will have (a) total number of atoms, the same combined mass, and (b) chemical properties. For each letter is it different or the same
Alicia is making a model of photosynthesis and respiration. Which statement describes the role of glucose in Alicia’s model?
Oxygen is an output for both respiration and for photosynthesis.
Glucose is an input for respiration and an output for photosynthesis.
Carbon dioxide is an input for respiration and an output for photosynthesis.
Of the following which are inputs of cellular respiration?
ATP
Glucose
Carbon dioxide
Of the following which are outputs of cellular respiration?
ATP
Glucose
Carbon dioxide
A scientist is researching the role that respiration plays in the movement of matter in ecosystems. She has developed the model shown here to illustrate the transfer of matter. The scientist places a small organism into a sealed container and the organism is allowed to undergo respiration for a one-hour period. The container holds water, oxygen, carbon dioxide, and nitrogen gas. The scientist measures the amount of each substance in the container both before and after the one-hour period. Which one will increase?
Water
Oxygen
Nitrogen gas
Carbon dioxide
A scientist is researching the role that respiration plays in the movement of matter in ecosystems. She has developed the model shown here to illustrate the transfer of matter. The scientist places a small organism into a sealed container and the organism is allowed to undergo respiration for a one-hour period. The container holds water, oxygen, carbon dioxide, and nitrogen gas. The scientist measures the amount of each substance in the container both before and after the one-hour period. Which one will decrease?
Water
Oxygen
Nitrogen gas
Carbon dioxide
ATP (adenosine triphosphate) stores energy in the bonds between its __________.
Nucleotides
Carbon atoms
Hydrogen atoms
Phosphate groups
What do light-independent reactions of photosynthesis need?
Water
Oxygen
Cellulose
Carbon dioxide
A cell that requires a lot of energy might contain large numbers of __________.
Vacuoles
Lysosomes
Mitochondria
Chromosomes
What are two produces of the Krebs cycle?
ATP and O2
H2O and CO2
ATP and CO2
ADP and H2O
Carbon dioxide from the atmosphere is dissolved in the seawater. Which process uses this dissolved carbon dioxide?
photosynthesis by oceanic fish
photosynthesis by phytoplankton
aerobic respiration by marine mammals
An incomplete carbon cycle is shown in the diagram. Two arrows do not show direction. How should the arrows be changed to complete the diagram?
Arrow 2 and arrow 3 should both point up.
Arrow 2 should point down, and arrow 3 should point up.
Arrow 2 should point up, and arrow 3 should point down.
The model shows the direction of movement of energy and matter through a food chain. Which statement describes how energy and carbon move through a food chain? Choose the correct answer.
Energy at lower trophic level – 0.1 X energy at next trophic level
Energy at lower trophic level – 0.15 x energy at next trophic level
Energy at lower trophic level – 10 x energy at next trophic level
A scientist is studying how certain human activities affect the phosphorus cycle. One of those activities is the use of fertilizer, which contains phosphorus. This phosphorus can end up in a watershed through the process of runoff. Since phosphorus is a limiting factor in aquatic ecosystems, the direct result of excess phosphorus in the watershed is an increase in the amount of (a) in the habitat. When these organisms eventually die, decomposers break down the carbon-based molecules in their bodies through the process of (b) This process removes a large amount of the (c) from the water, which leads to the deaths of other aquatic organisms. Which of the following words goes with each letter
There are three major types of ecological pyramid models used for illustrating matter and energy transfer among organisms in an ecosystem. Which of the following pictures models energy transfer aoung trophic levels?
There are three major types of ecological pyramid models used for illustrating matter and energy transfer among organisms in an ecosystem. Which of the following pictures hows how many organisms are present at each trophic level?
There are three major types of ecological pyramid models used for illustrating matter and energy transfer among organisms in an ecosystem. Which of the following pictures compares the biomass at different trophic levels?
What is the number of individuals that can be supported by the environment?
Carrying capacity
Population density
Dispersion patterns
Symbiosis
