Global Connection: Newfoundland Cod Fishery Collapse Answers

Energy in higher trophic levels is greater than energy at lower trophic levels.

Which of the following statements about entropy is true?a.Entropy increases going from one trophic level to another.b.Increases in entropy lead to reversible processes. c.A system’s work output is limited when changes in entropy do not occur.d.All of the above

Energy in an ecosystem flows directly from _______.a.producers to tertiary consumersb.producers to secondary consumersc.tertiary consumers to secondary consumersd.secondary consumers to tertiary consumers

Which of the following levels is the most efficient at energy conversion?a.producersb.primary consumersc.secondary consumersd.tertiary consumers

Producers are the primary living source of energy in a food web.

When conducting scientific research, any information that is found must be analyzed to determine its validity. Joel is a firm believer that exposure to cold weather can cause the common cold. He conducts online research about this topic. Of the excerpts below, which would be considered biased? a. The flu and the common cold are caused by viruses. b. Viruses are passed by contact between people. c. Cold and flu season occurs when the weather is cold, so there must be a connection. d. All of the above excerpts are biased. Please select the best answer from the choices provided

Having some prior knowledge about your topic is helpful when conducting Internet research.

How are gross production and net production different?a.Net production is always greater than gross production.b.Net production is always less than gross production.c.Only animals have net production.d.Only plants have net production.

Energy that is not passed on from one trophic level to the next is _______.a.lost as heatb.returned to the sunc.destroyedd.all of the above

When researching online, as long as the gathered information is the result of a valid Internet search engine, it is not necessary to analyze it for bias.

When conducting scientific research, any information that is found must be analyzed to determine its validity. John believes that UFOs and extraterrestrial life exist. The excerpts below are an eyewitness account of UFO activity in South Carolina. Which of these observations is valid? a. “I can tell from a firsthand experience that yes, UFOs do exist.” b. “One thing for sure is that they were UFOs and they had to be piloted by some type of intelligent life.” c. Both of these observations are valid. d. Neither of these observations is valid. Please select the best answer from the choices provided

When conducting scientific research, appropriate methods must be used to find information that is reliable and valid. Angela was assigned a research project about human body systems for her anatomy course. She would like to focus on the immune system, and more specifically, the effects of HIV on the immune system. Which of the following options would be the best way for her to conduct an online search about her topic? a. Type in “human body systems” + HIV b. Type in “immune system” + human c. Type in “HIV immune system” d. Type in “human immune system” + HIV effects Please select the best answer from the choices provided

The relationship between the amount of energy available for use and the amount of entropy in a food chain differs between trophic levels. Why would the amount of entropy increase from one trophic level to another in a food chain or energy pyramid? a. the available energy from one trophic level to another increases b. energy is lost at each level as heat, which increases randomization c. the amount of biomass decreases from one trophic level to another d. the available energy at each level may either increase or decrease, creating randomization Please select the best answer from the choices provided

The amount of available energy changes between the trophic levels found in a food chain or energy pyramid. Photos (left to right) by Mehmet Karatay, Jens Buurgaard Nielsen, Furryscaly, and Walter Siegmund How would the amount of available energy differ in the trophic level of the mouse compared to the trophic level of the hawk? a. Available energy would increase from the mouse to the hawk. b. Available energy would decrease from the mouse to the hawk. c. Available energy would initially increase from the mouse to the hawk, and then decrease over time. d. Available energy would remain the same from the mouse to the hawk. Please select the best answer from the choices provided

Gross production is the amount of energy left after cellular respiration.

The amount of available energy changes between the trophic levels found in a food chain or energy pyramid. Photos (left to right) by Mehmet Karatay, Jens Buurgaard Nielsen, Furryscaly, and Walter Siegmund In the food chain shown, which of the following changes between trophic levels would have the highest energy conversion efficiency? a. leaf to mouse b. mouse to snake c. snake to hawk d. all changes would have the same efficiency Please select the best answer from the choices provided

Which of the following is the most likely flow of energy in an aquatic ecosystem? a. phytoplankton → mammal → zooplankton → fish b. phytoplankton → zooplankton → fish → mammal c. zooplankton → phytoplankton → mammal → fish d. mammal → fish → zooplankton → phytoplankton Please select the best answer from the choices provided

Energy in an ecosystem flow from consumers to producers.

Which of the following organisms in the soil food chain does not obtain energy directly from plants?a.bacteriab.fungic.protozoad.nematodes

Entropy is greater at higher trophic levels than at lower levels.