Which of the following is the seat of temperature
control in mammals?
a. adrenal cortex
b. adrenal medulla
c. thymus
d. hypothalamus
e. heart
Answer: d
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Communication between cells of the immune system is accomplished in many cases through
A) allelic exclusion. B) clonal deletion. C) cytokines. D) allelic exclusion, clonal deletion, and cytokines.
Local edema, swollen lymph nodes, fever, soreness, and abscesses are indications of ________.
A. latency B. a syndrome C. inflammation D. sequelae E. toxemia
Instances in which cells die shortly after they are produced in development illustrate:a
morphogenesis. b. mosaic development.
c. apoptosis. d. non-specific differentiation. e. caspases.
What is a soil with roughly equal amounts of humus, silt, clay, and sand called?
a. a topsoil b. a loam c. a subsoil d. a compost