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A: Answer--
Give a) 3 examples of biotic components
b) 7 examples of abiotic components
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- Which of the following is an Abiotic factor? A) Plants B) Water C) Consumers D) Animals4) 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, producersWhich of the following is not an abiotic factor in an ecosystem? A) Available light B) Temperature Water availability Number of organisms in a population
- 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 matter4) Many bacteria and fungi are important in the environment because they A) recycle nutrients, making them available for other organisms B) return energy to the environment, making it available for plants C) produce glucose through the process of respiration D) reverse the flow of energy in the ecosystemAdding high levels of nutrients to a lake or inshore area wouldhave all of the following effects in that environment excepta) death of clams and crabs.b) increased growth of heterotrophic microbes.c) increased growth of photosynthetic organisms.d) increased levels of dissolved O2 .
- The process by which microbes break down food and paper waste into nutrient-rich humus is called: Question 2 options: A) eutrophication B) sludging C) oxygen recycling D) compostingWhich factor most directly limits the variety of herbivores living in an area? a) amount of nitrogen in the atmosphere b) number of decomposers present c) types of plants present d) kinds of minerals in the waterWhich of the following statements is correct? A) Microorganisms are significant contributors to the total biomass on Earth. B) Microorganisms represent a much smaller amount of Earth's biomass than plants. C) Microorganisms represent a much smaller amount of Earth's biomass than animals. D) Microorganisms are significant in number, but not in overall biomass.
- Which of the following pairs of words are most clearly opposites? a. biodegradable, recalcitrant b. activated sludge, sewage c. carbon dioxide, methane d. SIV, HIVWhich of the following agricultural practices can increase water pollution? a) Manual cultivating b) Farm machinery c) Pesticide use d) GMO cropsThe term BOD (Biological Oxygen Demand): Group of answer choices is a measure of the organic matter and other oxygen-demanding wastes in a)a lake or stream. b)is the highest after a person eats a candy bar c)is defined as the amount of oxygen needed by fish to survive. d)is defined as the number of organisms that need oxygen in a stream. Next