Which statement correctly describes the nucleus of the atom?
The nucleus of the atom contains the electrons
The nucleus of the atom is mostly empty space.
The nucleus of the atom surrounds the center of the atom.
fo
The nucleus of the atom contains most of the mass of an atom.

Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

What’s the student’s scientific question