1. In the context of constructing a scientific argument, what is the primary function of a claim?
- A. To present all the raw data collected during an investigation.
- B. To propose a testable explanation for an observed phenomenon.
- C. To describe the step-by-step procedure used to gather evidence.
- D. To summarize the final conclusions of multiple different experiments.
2. A student claims a drought caused a squirrel population decline. What reasoning best connects this cause and effect?
- A. The drought reduced the availability of acorns, a key food source, leading to starvation.
- B. The number of squirrels counted this year is significantly lower than the number counted last year before the drought.
- C. Squirrels are mammals that are known to live in the local forests and parks where the drought occurred.
- D. Other animal populations in the area, such as birds and insects, were also affected by the lack of rain.
3. A researcher states: "The caribou population is shrinking." To support this, they present data showing that the wolf population in the same habitat has significantly increased. What role does the data about the wolf population serve in their argument?
- A. It serves as the reasoning.
- B. It serves as the evidence.
- C. It serves as the claim.
- D. It serves as a new hypothesis.
4. A scientist is investigating why a specific type of algae is disappearing from a lake. Which of the following would represent the WEAKEST scientific argument?
- A. An argument that relies on a single water temperature reading from one day.
- B. An argument supported by data on boat traffic, chemical runoff from farms, and fish population changes.
- C. An argument that links rising water acidity over five years to the algae's known intolerance for acid.
- D. An argument combining historical algae population data with recent surveys of invasive snail species that eat the algae.
5. A botanist claims an invasive beetle is damaging a city's rose bushes. To build a complete scientific argument, which type of data would be most crucial to collect?
- A. Historical records of the city's founding date and original landscape design.
- B. Surveys of beetle populations on both damaged and healthy rose bushes across the city.
- C. A chemical analysis of the soil composition in a single park where some bushes are unhealthy.
- D. A public opinion poll asking residents if they have noticed the unhealthy bushes.
6. According to the principles of cause and effect in ecosystems, what was the most direct cause of the Orange-Bellied Parrot population's decline?
- A. A widespread disease that only affected parrots.
- B. The introduction of a new predator into their habitat.
- C. A sudden decrease in the availability of their primary food source.
- D. A change in migration patterns due to climate shifts.
7. When scientists conclude that a specific cause led to an observed effect, what is the most important requirement for their conclusion to be scientifically valid?
- A. The conclusion must be agreed upon by everyone in the community.
- B. The conclusion must be supported by clear and verifiable evidence.
- C. The experiment must be repeatable by the same group of scientists.
- D. The cause must be a simple, single event rather than a complex one.
8. If an island ecosystem is described as 'highly sensitive,' what would a biologist expect to happen if a new species of rat that eats bird eggs is introduced?
- A. The native birds will quickly learn to hide their nests from the rats.
- B. The rat population will not survive because it is a new environment.
- C. The introduction of the rats will have little to no effect on the ecosystem.
- D. The populations of native, ground-nesting birds could decline dramatically.
9. The near extinction of the Orange-Bellied Parrot after a change in its environment demonstrates which key ecological principle?
- A. All species are capable of rapid adaptation to new threats.
- B. Ecosystems are generally resilient and quickly recover from any change.
- C. Ecosystems can be sensitive, and a single change can have a major impact.
- D. Predator-prey relationships always result in the extinction of the prey.
10. What does it mean when a new predator 'destabilizes the birth/death balance' of a prey population?
- A. The prey's birth rate increases dramatically to compensate for the new threat.
- B. The prey's death rate increases to a point where it is significantly higher than its birth rate.
- C. Both the birth and death rates of the prey population decrease at the same time.
- D. The predator and prey populations immediately become equal in size.