The excretory structures of annelids are referred to as
A. flame cells.
B. kidneys.
C. protonephridia.
D. metanephridia.
E. malpighian tubules.
D. metanephridia.
Biology & Microbiology
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Which type of soil has the best oxygen and water penetration to support plant growth?
A. Sand B. Silt C. Loam D. Clay E. Humus
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The process known as ________ is a mechanism of release for enveloped viruses
A) lytic replication B) persistent infection C) metastasis D) latency E) budding
Biology & Microbiology
According to NFPA, rehab should be required after a fire fighter has consumed ____ 30-minute SCBA bottle(s).
a. 4 b. 1 c. 2 d. 3
Biology & Microbiology