23. Ecological stability is the result of _______________, the tendency of a system not to change when disturbed, and _________________, the ability of the system to recover. 24. Which of the following is NOT a limiting factor in primary production? Question 24 options: A) Red light B) Oxygen C) Micronutrients D) Water

23. Ecological stability is the result of _, the tendency of a system not to change when disturbed, and ___, the ability of the system to recover. 24. Which of the following is NOT a limiting factor in primary production? Question 24 options: A) Red light B) Oxygen C) Micronutrients D) Water

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter20: Ecosystems And The Biosphere

Section: Chapter Questions

Problem 14CTQ: Why are drinking water supplies still a major concern for many countries?

See similar textbooks

Similar questions

Question 5 Actual evapotranspiration is not correlated with primary production. A) True B) False Question 6 Which of the following are thought to determine the length of food chains? A) Nutrient output B) The number of homeotherms in the food chain C) The degree of omnivory D) Disturbance
Nitrogen fixing bacteria is useful in growing which crop ________ A) Wheat B) Paddy C) Legume D) Maiz
Question 9 In a nutrient spiral, __________________. A) nutrients are transported to deeper waters. B) nutrients are transported downstream. C) salmon move nutrients to terrestrial systems. D) nutrient cycles occur in discrete segments of the stream. Question 10 _________ obtain energy from inorganic molecules; _______ obtain energy from organic molecules. Autotrophs; heterotrophs Heterotrophs; autotrophs Secondary consumers; primary producers Carnivores; photosynthesizers
4) In the graphical representation of energy flow, generally the base is made up of the __________, which have the highest energy flow, while at the top we have the __________ that have a minimum energy flow. A) top consumers, producersB) Producers, decomposersC) Producers, superior consumersD) Decomposes producers, producers
1. Construct a table comparing natural gas, coal, and oil according to (a) origin, (b) fuel value, (c) other uses, (d) chemical composition, (e) environmental effects, etc. 2. Make a report on biofuels currently being studied and used in the Philippines. 3.Make a presentation on the advantages and disadvantages of using biofuels as an alternative energy source in the Philippines.
One of the lessons from a pyramid of production is that _____. A) eating grain-fed beef is an inefficient means of obtaining the energy trapped by photosynthesis B) the energy lost as heat or lost in cellular respiration is 10% of the available energy of each trophic level C) only one-half of the energy in one trophic level is passed on to the next level D) most of the energy from one trophic level is incorporated into the biomass of the next level E) production efficiency is highest for primary consumers
What are the adverse effects of fertilizers on pollution?
Which of these are known to host chemosynthetic communities? a) Hydrothermal vent O b) Hydrocarbon seep c) Hypersaline seep d) All of the above.
The Venus flytrap is a photosynthetic plant that can trap and eat small insects. The Venus flytrap is a:A) tertiary consumer. B) producer.C) both a producer and secondary consumer. D) both a producer and tertiary consumer.E) secondary consumer. Then expain why the choice is correct and why the others are incorrect
27. Cultural eutrophication is a natural process. A) True B) False 28. In the carbon cycle _________________________. A) CO2 enters the ocean primarily by photosynthesis. B) photosynthesis always balances respiration. C) Carbon enters the food chain in the form of carbonic acid. D) CO2 in the ocean forms a weak acid.
تشمل ملوثات المياه: Water pollutants includes.. A) Pathogens, Greenhouse gases, Heavy metals B) Pathogens, Greenhouse gases, Chemicals C) Pathogens, Chemicals, Heavy metals D) Pathogens, Greenhouse gases, Organic matter
2)The greastes effect that hmans have on the carbon cycle derives from A) the production of methane from domestic cattle B) all of these C) the production of CFCs D) runoff of fertilizers from agriclture E) the burning of fossil fuels