I think the correct answer from the choices listed above is option C. The energy acquisition in the deep sea differ from energy acquisition near the ocean’s surface by the fact that o<span>rganisms in the deep sea do not have direct access to sunlight. Hope this answers the question. Have a nice day.</span>
Answer:
organelles are very similar to present-day bacteria, suggesting a common ancestor.
Explanation:
Some evidence suggests that some organelles like mitochondria and chloroplasts within eukaryotes were once used to be independent eukaryotes.
Endosymbiosis theory says that ancestral prokaryotic cells engulfed bacteria like cyanobacteria which with time evolved into mitochondria and chloroplast. Molecular evidence also proves that these organelles were once prokaryotic organisms because they show similar genetic makeup and ribosome type.
So these organelles are similar to present-day bacteria showing that they have a common ancestor.
5. System level
6. Organ level
Answer:
D. Hypothesis.
Explanation:
A hypothesis is defined as an idea or explanation which can be further tested through study and experiments. It is a proposed explanation for a phenomenon.
Scientists generally base scientific hypotheses on previous observations that cannot be explained with the available scientific theories.
Answer:
nitrogen fixation is the answer