The embryonic skeleton of all vertebrates is made of:
a. yellow bone marrow
b. elastic tissue
c. loose connective tissue
d. cartilage
e. muscle tissue
d
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Striated muscles appear striated or banded under a microscope. Striated muscle fibers include (Choose all correct answer options):
A. skeletal muscle B. muscles of cnidarians C. smooth muscle cells D. cardiac muscle cells
Cnidarians share a common body plan that takes two forms. The free-floating form is called a ____ , whereas the sessile form is called a ____
Fill in the blank with the appropriate word.
Incubation conditions for anaerobic cultures include:
a. 30°C to 35°C. b. incubation for 48 hours before exposing the culture to air. c. incubation for at least 3 days before dis-carding. d. aerobic incubation of the broth medium with the cap loose.
Answer the following statements true (T) or false (F)
1. Glycolysis involves 10 enzyme-catalyzed steps, that can be grouped into three phases: energy investment phase, cleavage phase, and the energy liberation phase. 2. The electron transport chain consists of a series of redox reactions in which electrons are transferred to oxygen as the final electron acceptor. 3. Oxygen is an excellent final electron acceptor because of its low electronegativity. 4. In prokaryotic cells, the electron transport system occurs in the mitochondria.