A) The melanocytes will produce melanin,the melanin is distributed into epidermal cells,a steroid is converted into vitamin D and stem cells can mutate leading to cancer.
B) The melanin will produce melanocytes,the melanocytes are then distributed into epidermal cells,a steroid is converted into vitamin D and stem cells can mutate leading to cancer.
C) The melanocytes will produce melanin,the melanin is distributed into dermal cells,a steroid is converted into vitamin D and stem cells can mutate leading to cancer.
D) The melanocytes will produce melanin,the melanin is distributed into epidermal cells,vitamin D is converted into a steroid and stem cells can mutate leading to cancer.
F) C) and D)
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A) squamous epithelium,cuboidal epithelium,smooth muscle and neural tissues
B) pseudostratified ciliated epithelium,cuboidal epithelium,smooth muscle and neural tissues
C) squamous epithelium,cuboidal epithelium,skeletal muscle and neural tissues
D) squamous epithelium,cuboidal epithelium,fibrocartilage and neural tissues
F) None of the above
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A
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A) muscle tissue
B) nervous tissue
C) epithelial tissue
D) connective tissue
F) A) and D)
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C
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A) basement membrane.
B) plasma membrane.
C) compact bone.
D) hyaline cartilage.
E) neuroglia.
G) A) and C)
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A) Melanocytes are found in the dermis and they produce melanin when exposed to UV light.The melanin is then distributed to epidermal cells.
B) Melanocytes are found in the epidermis and they produce melanin when exposed to UV light.The melanin is then distributed to epidermal cells.
C) Melanocytes are found in the epidermis and they produce melanin when exposed to UV light.The melanin is then distributed to dermal cells.
D) Melanocytes are found in the hypodermis and they produce melanin when exposed to UV light.The melanin is then distributed to epidermal cells.
F) A) and C)
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A) stratified squamous epithelial cells.
B) collagen fibers.
C) elastic fibers.
D) adipose tissue.
F) A) and C)
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A) Neurons
B) Neuroglia
C) Nerves
D) Intercalated disks
E) Hyaline cartilage
G) C) and E)
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A) cardiovascular system
B) brain
C) columnar epithelium
D) heart
E) lungs
G) C) and E)
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A) line body cavities and cover surfaces.
B) bind and support body parts.
C) store energy as fat.
D) fill spaces.
E) produce blood cells.
G) A) and E)
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A) Cells in the nervous system that conduct electrical impulses are called neurons.
B) Neuroglia support and protect neurons.
C) The dendrites carry electrical impulses away from the cell body of the neuron.
D) Nerve fibers are long axons covered by a myelin sheath.
E) Neuroglia provide neurons with nutrients and keep them free of cellular debris.
G) All of the above
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A) skeletal muscle
B) smooth muscle
C) cardiac muscle
D) nervous tissue
F) A) and D)
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The epidermis is the 1st line of defense...View Answer
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A) transporting large amounts of oxygen to the infected area.
B) engulfing infectious pathogens and making antibodies.
C) increasing platelet production and forming a plug to seal off the area.
D) producing antibiotics that will kill bacteria and fungi.
F) None of the above
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A) Blood vessels in the skin begin to dilate which increases blood flow to the surface of the skin.Environmental variables will help decrease the temperature of the blood.The nervous system also activates the sweat glands which help decrease temperature.
B) Blood vessels in the skin begin to constrict which increases blood flow to the surface of the skin.Environmental variables will help decrease the temperature of the blood.The nervous system also activates the sweat glands which help decrease temperature.
C) Blood vessels in the skin begin to dilate which increases blood flow to the surface of the skin.Environmental variables will help decrease the temperature of the blood.The heart rate decreases in an attempt to slow down blood flow.
D) Blood vessels in the skin begin to dilate which decreases blood flow to the surface of the skin.Environmental variables will help decrease the temperature of the blood.The heart rate increases in an attempt to slow down blood flow.
E) Blood vessels in the skin begin to dilate which increases blood flow to the surface of the skin.Environmental variables will help decrease the temperature of the blood.The nervous system will deactivate the sweat glands to help decrease body temperature.
G) A) and B)
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A
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A) cardiovascular
B) skeletal
C) muscular
D) digestive
F) A) and B)
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A) negative feedback loop that stimulates a response similar to the stimulus.
B) dynamic interplay between events that tend to change the external environment and events that tend to keep it the same.
C) the acquisition,transformation and use of energy.
D) maintenance of normal internal conditions by means of self-regulating mechanisms.
F) A) and D)
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A) muscle tissue
B) nervous tissue
C) epithelial tissue
D) connective tissue
F) C) and D)
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B) False
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B) False
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A) heat by stimulating the sweat glands.
B) cold by contracting skeletal muscles in shivering.
C) cold by rerouting blood away from the skin.
D) heat by constricting the blood vessels in the skin.
E) All of the statements are not true.
G) A) and C)
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