One
substance, other than the secretions from nerve cells, that is used in cell
communication are hormones.
<span>
To
add, <span>a hormone is any member of a class of signaling
molecules produced by glands in multicellular organisms that are transported by
the circulatory system to target distant organs to regulate physiology and
behaviour.</span></span>
<h2>
Correct Answer is (D)</h2>
Explanation:
(D) distinguishes among microorganisms based on some enzymatic or metabolic ability.
- <em>The prokaryotic microorganisms incorporate the microscopic </em>organisms and the archaea (or the eubacteria and archae bacteria, by more seasoned phrasing).
- The eukaryotic microorganisms incorporate the protists (protozoa), the parasites and in any event the <em>unicellular algae.
</em>
- Mycoplasma genitalium, a parasitic bacterium which lives in the <em>primate bladder, squander removal organs, genital, and respiratory tracts,</em> is believed to be the littlest known life form fit for free <em>development and multiplication. </em>
- Microscopic organisms that expect oxygen to develop are called <em>obligate aerobic bacteria</em>
B) Cell.
Everything is made up of cells.