The term for a thin layer of tissue covering a structure is , and its adjective form is .

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

To be or not to be that is da question

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above