What is the meaning of the word subtle as it is used in stanza 5 to describe the spider's web?
А
very colorful
B
hard to see
C
large enough to catch the fly
extremely sticky
D

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different