2. Sharks are the top predator in a marine ecosystem. Sharks help to
maintain a balance in the population of smaller organisms. If the shark's
population were to decrease, the smaller organisms would increase greatly,
interrupting the food web. Which of the following relationships is MOST
similar to the relationship between the shark and the marine ecosystem?
O A frog eats flies and lizards in a swamp ecosystem
Leaf-cutter ants eat grass in a prairie ecosystem
A wolf eats small mammals in a forest ecosystem
O A lizard eats a cricket in a desert ecosystem
Answers: 3
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Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
Chemistry, 22.06.2019 22:00
Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
Answers: 1
2. Sharks are the top predator in a marine ecosystem. Sharks help to
maintain a balance in the popu...
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