All of the organisms living together in a particular habitat and their interactions with their non-living environment are called which of the following?
a. biomes
b. populations
c. ecosystems
d. communities
c. ecosystems
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The hormones epinephrine and norepinephrine constitute the "alarm" response of the body to stress. What secretes these hormones?
A. pancreas B. thyroid gland C. adrenal medulla D. pineal gland E. anterior pituitary gland
The process that destroys or removes all microorganisms and microbial forms, including bacterial endospores, on inanimate objects is ________.
A. degermation B. disinfection C. antisepsis D. sanitization E. sterilization
Turner syndrome is an example of a __________ condition
a. monosomic b. disomic c. trisomic d. polyploid e. fragile site
Which valve is responsible for preventing the backflow of blood into the right ventricle?
A. tricuspid B. bicuspid C. pulmonary semilunar D. mitral E. aortic valve