If a ray-finned fish is to both hover (remain stationary) in the water column and ventilate its gills effectively, then what other structure besides its swim bladder will it use?
A) its pectoral fins
B) its lateral line system
C) its caudal (tail) fin
D) its opercula
D
Biology & Microbiology
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Lyme disease is only seen in people living in Lyme, Connecticut.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Sperm and egg cells contain half the number of chromosomes found in somatic cells, and are referred to as ________, which comes from the Greek word haploos, meaning "single."
Fill in the blank(s) with correct word
Biology & Microbiology
A mass of hyphae in an ascomycete is commonly referred to as a(n)
A. sporangium. B. mycelium. C. mycorrhizae. D. conidium. E. ascus.
Biology & Microbiology
The ancestor of humans is commonly thought to be
A. Australopithecus boisei. B. Australopithecus anamensis. C. Australopithecus africanus. D. Australopithecus afarensis.
Biology & Microbiology