Teas test review 7
what type of chemical bond connects the oxygen and hydrogen atoms in a molecule of water?
a. static bond
b.
... [Show More] aquatic bond
c. ionic bond
d. covalent bond - correct answer covalent bond
which of the following statements describes a chemical property of water?
a. water has pH of 1.
b. a water molecule contains 2 hydrogen atoms and 1 oxygen atom.
c. a water molecule contains 2 oxygen and 1 hydrogen atom.
d. the chemical formula for water is HO2. - correct answer a water molecule contains 2 hydrogen atoms and 1 oxygen atom.
which of the following is needed for an experiment to be considered successful?
a. a reasonable hypothesis
b. a well-written lab report.
c. data that others can reproduce
d. computer-aided statistical analysis - correct answer data that others can reproduce
an atom has 2 protons, 4 neutrons, and 2 electrons. what is the approximate atomic mass of this atom?
a. 2
b. 4
c. 6
d. 8 - correct answer protons + neutrons = atomic mass
2+4=6
which of the following is true regarding T cells?
a. they are only seen in those with leukemia
b. they are a specialized type of red blood cell
c. they mature in the thyroid
d. they play a role in the immune response - correct answer they play a role in the immune response
what type of bond is formed when electrons are transferred between atoms?
a. transfer bond
b. static
c. covalent bond
d. ionic bond - correct answer ionic bond
what is the primary function of antibodies?
a. production of white blood cells
b. initiates gluconeogenesis
c. promotes the intracellular storage of lipids
d. facilitate the breakdown of antigens - correct answer facilitate the breakdown of antigens
which statement below best describes the process of condensation?
a. condensation is the process of changing from a gas to liquid.
b. condensation is the process of changing from a liquid to gas.
c. condensation is the process of changing from a solid to gas. - correct answer condensation is the process of changing from a gas to liquid.
which of the following lists the normal blood flow through the heart?
a. left ventricle, left atria, body, right ventricle, right atria, lungs
b. left atria, left ventricle, lungs, right atria, right ventricle, body.
c. right atria, right ventricle, lungs, left atria, left ventricle, body
d. right ventricle, right atria, body, left atria, left ventricle, lungs - correct answer right atria, right ventricle, lungs, left atria, left ventricle, body
which of the following functions is not controlled by the autonomic nervous system?
a. digestion
b. walking
c. heartbeat
d. temperature regulation - correct answer walking
every child in a certain family suffers from autism. based on this evidence, what possible conclusion can be drawn about autism?
a. autism may be lethal
b. autism may be genetic
c. autis [Show Less]