QUESTION 7 In aquatic ecosystems, the highest nutrients levels are found in area
ID: 280031 • Letter: Q
Question
QUESTION 7 In aquatic ecosystems, the highest nutrients levels are found in areas that have the O highest light levels O fewest sediments. O lowest light levels. O highest elevation. O highest temperatures QUESTION 8 What is meant by the term "trophic level? Arial 3 (12pt) Path: p Words:0 QUESTION9 Maintaining the ozone layer is crucial for life because it O absorbs high-energy UV radiation. O blocks low-energy IR radiation. O absorts lowenergy UV radiation. O absorbs visible light O blocks high-energy IR radiation. QUESTION 10 In a grassland of Kansas, 1,000 grams of grass are produced per square meter per year by all the different grass species. A theoretical upper limit to the biomass of secondary consumers that can be supported in this ecosystem is O 10 grams. O 100 grams. O 0.1 gram. O 1,000 grams O 1 gram. QUESTION 11 The greatest natural threat to newly hatched sea turtles is O predation by native species. O drowning. O polluted ocean waters. O beach development. QUESTION 12 are strips of protected land that allow animals to travel between core reserves.Explanation / Answer
Answer:
7.
In aquatic ecosystems, the lowest light level area contains the highest nutrient levels.
Hence, option(C) is the correct answer.
8.
The trophic level is defined as the organisms' group which occupy similar level in the food chain in an ecosystem.
Five type of trophic level is generally found in the food chain:
Producers, primary consumers, secondary consumers tertiary consumers and apex predators.
9.
The ozone layer is very important because it absorbs the harmful high energy ultraviolet rays.
Hence,option (a) is correct.
10.
A theoretical upper limit to the biomass of secondary consumers that can be supported ecosystem is 10 gram.
Hence,option (a) is correct.
11.
The greatest threat to the newly hatched sea turtle is predation by native species.
Hence, option (a) is correct.
12.
Wildlife corridors are strips of protected land that allow the wild animals to travel between two reserves.
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