The surface layer (s-layer) of prokaryotes choose one: a. is found only in archaea. b. is present all the time in all bacteria. c. may be lost from bacteria cultured in the lab. d. is composed primarily of saccharin.

Answer;

-May be lost from bacteria cultured in the lab

Explanation;

- The S-layer is a surface paracrystalline layer that forms the outermost cell envelope covering the entire bacterial cell, and represents a predominant surface antigen, found in almost all archaea, as well as in many types of bacteria.

-Since S-layers are found in gram-positive and gram-negative bacteria and archaea, they can be associated with quite different supramolecular cell envelope structures. In gram-positive bacteria and archaea, the S-layer subunits are linked to the peptidoglycan-containing layer or to the pseudomurein.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u