Answer: option (D).
Explanation: Nicholas fiddled with his thumbs, because, he didn’t dare look at his sister as she towered over him.
Commas are mostly used to divide or separate parts of a sentence in order to make the meaning clear and the sentence easier to read. Commas mark a brief pause in the sentence, usually at a point where you would naturally pause if you were speaking rather than writing.
Answer:
Brown algae and dinoflagellates.
Explanation: In a phylogenetic tree, two species are considered as most closely related if they share a more common ancestor than the others. The nodes of tree represent the common ancestor, while the tips of branches represent species originated from that ancestor
Answer: A and B
Explanation: C is coming from your own ideas, and D is just not citing a source correctly.
