1. Which is the most common theme among several of the theories about how life originated on Earth?
A. electrical energy
B. water
C. volcanic energy
D. space
2. What group of organisms can be further classified into Kingdoms?
A. Archaea
B. Eukaryotes
C. Fungi
D. Viruses
3. Taxonomy is an important tool that helps scientists in a variety of ways. Of the following statements, which is the most impractical and is unlikely to be informed by taxonomy?
A. Watching species as they evolve in real time gives us the opportunity to name and classify new organisms as speciation occurs.
B. Learning more about unfamiliar species allows us to recognize the potential of organisms in helping with major problems like nutrition and famine, climate change, and pollution.
C. Identifying new species allows us to understand their place in the ecosystem, which informs us about the species’ needs, challenges, and services provided.
D. Understanding shared ancestry allows us to trace the history of our planet and our relationship to other species.
4. The Five Kingdom classification system was used until the invention of
A. DNA sequencing.
B. the scientific method.
C. the microscope.
D. genes.
5. A new species uses photosynthesis to create energy. It must be pollinated by animals because it cannot move. Which kingdom will the species be in?
A. Plantae
B. Protista
C. Animalia
D. Fungi
6. A light disturbance in an ecosystem could include
A. a volcanic eruption.
B. cutting down a forest for wood manufacturing.
C. filling in and paving over a lake for a parking lot.
D. a tree falling over from a thunderstorm.
7. A scientist is trying to classify a new organism. She observes that the organism is a microorganism. It is prokaryotic, and reproduces through binary fission. It was found living in a hydrothermal vent. What is the best classification for the organism?
A. Eukarya
B. Virus
C. Bacteria
D. Archaea
8. If the amount of algae in the ocean decreases by 50%, the population of its consumers, goby fish, will
A. decrease to its carrying capacity.
B. increase to its carrying capacity.
C. increase by 50%.
D. go extinct.
9. The difference between a population and a community is
A. population references one species while community references all living species in an area.
B. population refers to multiple species at a time while community refers to a single species.
C. population, is measured over a duration of time while , community, is measured today.
D. population references only living things while community references living and non-living things.
10. A dead tree is home to many organisms, including fungi, insects, and some small animals. This is an example of a(n)
A. species.
B. ecosystem.
C. population.
D. community.
11. Which situation is an example of interspecific competition?
A. a snake and fox hunting mice
B. maple tree seedlings competing for sunlight
C. bacteria living in the human colon
D. alligators hunting fish
12. Which statement best describes the aphotic zone of the ocean?
A. Food is plentiful in this zone for the first two hundred feet.
B. Organisms may rely on chemosynthesis to obtain energy.
C. It is found within the first one hundred feet of the surface of the ocean.
D. Photosynthesis occurs throughout this zone.
13. Which change would create a new ecosystem?
A. a yearly migration
B. an introduced species
C. a dam flooding a valley
D. a lake freezing over
14. How can the loss of biodiversity affect humans?
A. Human diets may change.
B. Humans may move north.
C. Population may increase.
D. Hunting and fishing may increase.
A stream runs through a mountain forest. Willow trees grow on each side of the stream. A small deer population feeds on the willows. Mountain trout rely on the willow shade for shelter. The apex predator in the forest is the mountain lion. The mountain lions primarily eat deer, but also eat rodents, and fish, as well as other prey species.
Analyze the components of the ecosystem. What is the most likely outcome if the mountain lion population vanishes?
A. The trout population will decrease.
B. The deer population will decrease.
C. A new predator species will begin eating deer.
D. The stream will become polluted.
16. A community is considering adding wind turbines to generate electricity. Which is a concern about harvesting wind energy?
A. Wind is a nonrenewable resource, so it is available only in a limited supply.
B. Wind is a renewable resource, so it causes a great deal of pollution.
C. Wind is a renewable resource, so there are not many systems in place to deliver the energy.
D. Wind is a nonrenewable resource, so it is very expensive to harvest.
4. C. THE MICROSCOPE
6. D. a tree falling over from a thunderstorm
11. A. a snake and fox hunting mice
13. a dam flooding a valley
15. A. The trout population will decrease.
16. C. Wind is a renewable resource, so there are not many systems in place to deliver the energy.
Thank you for correcting and providing your answers! However, I must correct that answer 16 is still incorrect. The correct answer is A. Wind is a nonrenewable resource, so it is available only in a limited supply.
no its C
I apologize for my mistake. You are correct that answer 16 is C. Wind is a renewable resource, so there are not many systems in place to deliver the energy. Thank you for bringing it to my attention.
1. B. water
2. B. Eukaryotes
3. A. Watching species as they evolve in real time gives us the opportunity to name and classify new organisms as speciation occurs.
4. A. DNA sequencing.
5. A. Plantae
6. B. cutting down a forest for wood manufacturing.
7. D. Archaea
8. A. decrease to its carrying capacity.
9. A. population references one species while community references all living species in an area.
10. D. community.
11. B. maple tree seedlings competing for sunlight
12. B. Organisms may rely on chemosynthesis to obtain energy.
13. B. an introduced species
14. A. Human diets may change.
15. B. The deer population will decrease.
16. A. Wind is a nonrenewable resource, so it is available only in a limited supply.