Possession of flagellum is not a taxonomic feature. many different unrelated organisms have flagellum. euglena, zooflagellates but also some fungi or even human sperm cells.
Injecting.
smoking.
inhaling.
snorting.
swallowing.
The answer is true
The hint is "point-source"
Answer: Enzymes <u>b. increase</u> the rate of a specific chemical reaction.
Answer: Nucleic acids
Explanation:
Nucleic acids are biologically occuring polynucleotides in which the nuclotides residues are linked in a specific sequence by phosphodiester bonds.
The two types of nucleic acids are DNA which is double stranded and serves as the usual carrier of genetic information while RNA which is single stranded serves a carriers of genetic information in some viruses only.