Answer:
2) The correct answer would be C- inefficient.
The term inefficient would be the best to describe the energy transfer between trophic levels. It is because most of the energy gets lost at a particular trophic level in the form of heat. The organism uses most of the energy available at particular trophic level for its cellular functions.
Only around 10% of the energy is transferred to the next trophic level.
3) The correct answer would be A- first step.
In any ecosystem, the producers occupy the first place as they manufacture or synthesize food from carbon dioxide and water with the help of sunlight.
Consumers (herbivores and carnivores) depend directly or indirectly on the producers to get their nutrition.
The simple food chain can be summarized as:
Producers→ Primary consumers (herbivores) → secondary consumers (carnivores) → tertiary consumers (top carnivores)
Answer:
Variables that cannot be associated with its population dynamics, in this case, for example, different streams with the same characteristics (for example, orientation, force direction, etc).
Explanation:
In this experiment, examples of dependent variables may include the growth rate, the survival rate, and the birth values of freshwater mussels.
The dependent variables are those you have to measure exactly in the experiment. In this case, dependent variables are represented by population values of freshwater mussels under different stream conditions.
“D” would be the best answer choice for me.... not sure if it’s correct though
Answer:
Explanation:
B) The pentose in the hairpin adopts only the C-3\' endo pucker conformation.
C) The hairpin adopts a right-handed helix with a diameter of 26 Å .
D) The hairpin contains G:C, A:U, and sometimes G:U base pairs.
DNA and RNA are both nucleic acids. Aside the structural difference of DNA being double stranded and RNA being single stranded, in DNA, the nucleotide bases adenine (A) is paired with thymine (T); while cytosine (C) is paired with guanine (G); howerver in RNA, thymine is replaced with uracil.; thus in RNA, the base pairs are - A:U and G:C
RNA however sometimes take on a dynamic structure, called the wobble case pair where guanine and uracil pair - G:U.
The diameter of RNA is 26 Å, while that of DNA is is 20 Å
The ribose in RNA with a helical structure has a C3’ endo conformation.
Answer:
Changing with the climate
Fish make calcium carbonate by combining calcium from seawater with carbonate ions generated from CO2 in their bodies. If the amount of atmospheric CO2 goes up as expected leading to a CO2 increase in the oceans the fish may produce more carbonate ions and thus more calcium carbonate.
Explanation:
