Question

11. A predator consuming prey would occur at the organizational level of the A) community. B) biome. C) population. D) ecosystem. 12. A basic principle to ecosystems is that one form of energy is transformed into another form, and there is always a loss of some energy as heat. A) True B) False 13. Science can best be described as A) a search for the ultimate truth. B) a search for evidence that proves our concepts wrong. C) proving facts. D) a complete lack of dissent amongst ideas to obtain the truth. 14. The real goal of hypothesis testing is to A) eliminate incorrect ideas. D) understand why science never changes. B) form a theory. C) fully explain observations. E) prove your theory. 15. A hypothesis refers to an) A) phenomenon that is observed but is not yet understood. B) testable explanation for an observed phenomenon. C) untestable explanation for an observed phenomenon. D) falsified explanation for an observed phenomenon. 16. A scientist wants to manipulate glucose levels in amphibians to determine freeze tolerance at - Celsius. Which arena would suit this question best? A) Laboratory experiment B) Field experiment C) Field surveys D) Observation in the wild 17. An ecologist measured the length and weight of different individuals of a species of bird. The most common method of graphically displaying the data is a A) frequency distribution. B) histogram. C) pie chart. D) scatter plot. E) stacked column graph 18. If x and y have a positive relationship as shown by a scatter plot, then the value of y will A) increase as the value of x decreases. B) increase as the value of x increases. C) decrease as the value of x increases. D) stay the same as the value of x decreases. c) hypotheses 19. Which of the following is a model? a) computer simulations b) theory of evolution d) mathematical models e) all of the above 20. An integrated set of hypotheses that together explain a broader set of observations is considered a(n) A) experiment. B) educated guess. C) fact. D) theory.

Answer 1

11) Answer : A. Community.

explanation

Group of organisms of the same kind thriving in the same location is called a population. The populations of the animals & plants thriving in an environment & interacting is called a community.

12) Answer: true.

explanation

Energy flow is the quantity of energy moving in a food chain. The energy flow is also known as the calorific flow. Sun is the biggest source of energy. Energy is converted from one form to the other, biggest example is plants, as they convert the solar energy into chemical energy in photosynthesis. The energy that isn't utilized will be lost as heat in an ecosystem.

13) Answer: B.

Science is a human effort that searches for evidences that proves our concepts wrong.

14) Answer: A. Eliminate incorrect ideas.

explanation

Hypothesis testing can be defined as a statistics technique, used in forming statistical decisions through the experimental information.

hope the answer helps.