Answer: C: Decomposers
Explanation: The mud and pond water likely contain some sort of <em>decomposing bacteria</em>. These bacteria can break down the complex nitrogen compounds in the dead fish, <em>producing simple nitrogen compounds.</em> These simple nitrogen compounds can then be used by the plants added to the terrarium.
A is wrong because <u>producers (such as the green plants added to the terrarium) can not break down the complex nitrogen compounds</u> in the fish's body.
B is wrong for a similar reason. <em>Algae are primary producers.</em> Because of this <u>they also lack the ability to break down the complex nitrogen compounds</u> found in the fish's body.
D is also wrong. A virus may be able to infect the fish and cause disease, but <u>it lacks the ability to break down the complex nitrogen compounds </u>found in the fish's dead body.
Since A, B, and D are wrong, along with the fact that we know that decomposers <em>can</em> break down the complex nitrogen compounds in the dead fish, we can conclude that C is the correct answer.
Answer:
stored energy within an object due to its position
Answer:
A
Explanation:
this is because, in smaller organism their SA/V ratio is large hence they have efficient transport of materials within their cells
Answer:
Recombinant DNA technology
Explanation:
Recombinant DNA technology (also called genetic engineering) is the combination of DNA molecules from two different species to create new genetic combinations that would not otherwise be found in the genome and that is of great importance to science and other fields. Recombinant DNA technology is mainly involved in the isolation, characterization, and alteration of DNA in organisms’ genome to create improved or novel organisms.
D is false. Decomposers are a separate level in of itself, so as far as “decomposers play a role at all trophic levels” go, the answer choice would be invalid, and thus forth is the correct answer. All other answers seem to be valid.
