When grouping organisms, which classification is most general for a particular type of organism?
A. Kingdom
B. Phylum
C. Order
D. Family
E. Species
Answer: A
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Which of the following statements about open and closed circulatory systems is false?
A. Closed circulatory systems use muscular hearts to pump blood through blood vessels, whereas open circulatory systems lack any kind of muscular pump. B. Closed circulatory systems operate under higher pressure than open circulatory systems. C. Closed circulatory systems can more effectively control the flow of blood to specific body regions than open circulatory systems. D. Closed circulatory systems deliver materials at faster rates than open circulatory systems. E. Closed circulatory systems have higher resistance to flow than open circulatory systems.
A cleaning solution used on the laboratory bench top to kill bacteria that are potentially harmful to humans would be called a(n):
a. surfactant. b. disinfectant. c. biocide. d. antiseptic.
Photosynthesis occurs in _____, while respiration occurs in _____
a. plants, animals d. plants, plants and animals b. animals, plants e. plants and animals, plants and animals c. plants and animals, animals
Which of the following structures would not be found in cells of a plant's roots?
a. mitochondria b. chloroplasts c. endoplasmic reticulum d. nucleus e. Golgi complex