The sinoatrial node consists of a form of this tissue.
A. nervous
B. muscular
C. epithelial
D. connective
E. adipose
B. muscular
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Without the higher rates of transpiration exhibited by angiosperms:
A. many tropical regions would have higher temperatures and lower rainfall. B. many tropical regions would have lower temperatures and lower rainfall. C. many tropical regions would have lower temperatures and lower rainfall. D. many tropical regions would be deserts.
____ is a form of asexual reproduction in which a new individual arises by the splitting of one organism into pieces
Fill in the blank with the appropriate word.
Addison's disease is a disorder of the adrenal glands which can progress to a severe illness which may include very low blood pressure and coma. Addison's disease is a disease of which organ system?
A. Circulatory system B. Respiratory system C. Integumentary system D. Endocrine system
Antigens bind at
a. A. b. B. c. C. d. D. e. E.