Cardiac muscle fibers are joined in a way that allows the cells to activate each other, and do not require stimulation by a neuron.
a. true
b. false
Answer: a. true
You might also like to view...
The specimens of choice for detecting urinary tract mycobacterial disease are:
a. single clean-catch midstream urine sam-ples. b. 24-hour timed urine samples. c. three daily clean-catch midstream urine samples. d. biopsies of the suspected site.
An inflammation of the brain parenchyma that is usually a result of viral infection is:
a. meningoencephalitis. b. aseptic meningitis. c. encephalitis. d. meningitis.
What is the function of the ampr gene in a plasmid vector?
A) It provides several unique restriction enzyme recognition sites for opening up the plasmid. B) It allows a researcher to separate bacterial cells with a plasmid from those without a plasmid. C) It contains an origin for replication of the bacterial chromosome. D) It allows a researcher to distinguish plasmids with an insert from those without an insert. E) It is required for packing plasmid DNA into bacteriophage heads.
Which mammalian skeleton provides an advantage in an aquatic environment?
A. A skeleton that has elongated legs and large flippers. B. A streamlined torpedo-shaped skeleton. C. A skeleton that allows for walking on the tips of their toes across the bottom of the ocean. D. All of the answer choices provide an advantage in an aquatic environment. E. None of the answer choices provide an advantage in an aquatic environment.