Microscopes
Microscope used to see three-dimensional images.
Scanning electron Microscope
“Animalcules” were first described by __.
Antony van Leeuwenhoek
The correct descending order of taxonomic categories is __.
domain, kingdom, phylum, class, order, family, genus, species.
Which of the following scientists discovered the antibiotic properties of Penicillium?
Alexander Fleming
Isotopes are atoms with __.
the same numbers of protons but a different number of neutrons.
What is the microscope that is used for cytoplasmic streaming?
Phase-contrast Microscope
Micrographia, a publication illustrating insects, sponges, as well as plant cells, was published by __.
Robert Hooke
Complex communities of microorganisms on surfaces are called __.
biofilms
The atomic number equals the number of __.
protons
A chemical bond in which electrons are equally shared is a(n):
Nonpolar covalent bond
What microscope is used for ultrathin sectioned specimens?
Transmission Electron Microscope
What type of microscopes are used to examine structures down to the atomic level?
Scanning probe microscopes
Which of the following sites of the human body does not have normal flora?
Blood
The atomic weight is equal to the sum of __.
protons and neutrons
The bond of oxygen and hydrogen between water molecules is a(n):
Hydrogen bond
Microscope that is used for observing insects.
Stereomicroscope
Which scientist is most responsible for ending the controversy about spontaneous generation?
Louis Pasteur
The binomial system of nomenclature was originally developed by:
Carl Linnaeus
The smallest units of matter are __.
atoms
After filling the first shell, the outermost shell of an atom can hold up to _____ electrons.
8
In the sixteenth century a father-and-son team, by the name of __________, produced a compound microscope consisting of a simple tube with lenses at each end.
Zaccharias and Hans Janssen
Molds belong to which of the following groups of eukaryotic organisms?
Fungi
Which of the following scientists performed the first vaccination against smallpox?
Edward Jenner
Particles of an atom located in the outermost shell and available for chemical bonding are called __.
valence electrons
The bond between sodium and chlorine atoms in sodium chloride is a(n)
ionic bond