Which measurement can be used to determine if earplugs are needed when working in a factory?
watts
amps
decibels
delta waves correct answers Decibels
The graph shows changes over time in a population of bacteria added to a test tube of growth medium. What activity characterizes the growth ...
The graph shows changes over time in a population of bacteria added to a test tube of growth
medium. What activity characterizes the growth cycle during phase II?
Bacteria are weakening due to the accumulation of waste products.
Bacteria are increasing in metabolic activity though not dividing.
Bacteria are dying off rapidly from lack of nutrients and space.
Bacteria are dividing regularly by binary fission. correct answers Bacteria are dividing regularly
by binary fission.
Which of the following is a true statement about an electron?
It has a positive charge.
It exhibits some properties of waves.
It is located inside the atom's nucleus.
It has the most mass of all atomic particles. correct answers It exhibits some properties of waves
Both parents of a child are carriers of a recessive allele for a disorder. What is the probability of
their child having the recessive disorder?
, 0%
25%
50%
100% correct answers 25%
The rate at which work is done is called
power.
energy.
velocity.
momentum. correct answers Power
Which of the following is caused by pathogenic bacteria?
stroke
influenza
tuberculosis
common cold correct answers Tuberculosis
A substance is considered acidic if it
is nonreactive with metals.
has a pH level higher than 7.
contains and releases hydroxide ions.
ionizes in water to form hydrogen ions. correct answers ionizes in water to form hydrogen ions.
Mayonnaise is an example of
a precipitate.
an emulsion.
a solute.
a gel. correct answers An emulsion
Which of the following types of energy is transferred by vibrating air particles?
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