Accurate Answers
3 Main layers of the skin correct answer epidermis (contains
melanocytes, which affect skin pigment), dermis (contains hair follicles,
nerve endings, blood vessels, glands), and hypodermic (or
subcutaneous layer)
3 Main Secretions of the Stomach correct answer pepsinogen (chief
cells), mucus (goblet cells), and hydrochloric acid (parietal cells)
3 Types of Muscle Tissue correct answer skeletal (striated, strong,
associated with voluntary muscle movement), smooth (non-striated,
associated with autonomic nervous systems, "involuntary movement"),
and cardiac (heart muscle, striated, has internal pacemaker)
Active immunity correct answer natural immunity results when a
person is directly exposed to a pathogen and produces antibodies
through the body's immune response
Acute angles correct answer angles <90 degrees
Adaptive immune system correct answer both reacts (cellular response;
fights pathogens) and remembers (humoral response; antibodies)
,Adenosine Triphosphate (ATP) correct answer a compound that
provides energy to cells. It is needed for muscle movement. It is
generated from food by mitochondria
Afferent Neuron correct answer transmit sensory information to the
CNS
Allele correct answer one of two or more versions of a gene. Individual
inherit two alleles for each gene, one from each parent. The dominant
allele is the stronger one, and the recessive allele is the weaker.
Alveoli correct answer tiny, thin-walled air sacs at the ends of the
smallest bronchioles where oxygen and carbon dioxide are exchanged
Antecubital correct answer front of the elbow
Area correct answer the amount of space within the boundary of the
shape
Argument correct answer a point the author believes
Arteries correct answer thick-walled blood vessels that carry blood
away from the heart to deliver oxygenated blood to body tissues
,Atom correct answer the fundamental unit of matter and the smallest
unit that retains the properties of a chemical element. The nucleus
(core) of an atom contains neutrons (neutral) and protons (positive.
Electrons (negative) are outside the nucleus in "pathways" called
orbitals (electron cloud). They increase in energy as they get farther
away from the nucleus.
Atomic Number correct answer defined by the number of protons. All
atoms of the same element have the same atomic number
Atomic weight correct answer number below the element's symbol in
the periodic table, measured in atomic mass units (amu)
Atria correct answer the two upper chambers of the heart
Autonomic Nervous System correct answer controls involuntary
movement such as heart rate and rhythm, digestion, and respiration
Axillary correct answer armpit
Balance correct answer instrument used to measure an object's mass
Bias correct answer tendency toward a preconceived idea
, Bonds correct answer strong attractive forces between elements and
compounds that are continually being created and broken. Chemical
reactions are the breaking and formation of chemical bonds
Brachial correct answer arm
Bronchi correct answer main passageways directly attached to the
lungs; they subdivide into smaller and smaller branches (bronchioles)
Buccal correct answer cheek
Capillaries correct answer smallest blood vessels made of a single layer
of endothelial cells which form networks to connect the arterial and
venous systems and exchange materials between blood and the body's
tissues. In the lungs they connect with alveoli for gas exchange
Cardiovascular/Circulatory System correct answer moves blood through
the body to transport oxygen, nutrients, chemical messengers, and
immune molecules and to remove waste
Carpal correct answer wrist
Catalyst correct answer chemical that accelerates a chemical reaction
by decreasing the activation energy needed for the reaction