Examples of organisms with macroscopic bodies and distinct tissue types can be found amongst both the prokaryotes and the eukaryotes
A. true
B. false
A
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The endosymbiotic theory says that precursor eukaryotic cells acquired cilia by endosymbiosis with a(n) ________ ancestor and others gained photosynthetic ability from endosymbiosis with a(n) ________ ancestor.
A. helminth, algal B. spiral, cyanobacterial C. protozoan, algal D. archaeal, cyanobacterial
Which cells in the root have a suberin layer called the Casparian strip?
A. endodermis B. pericycle C. cortex D. epidermis E. root hair
Which of the following statements is false?
a. A heart will stop beating when the nerves to the heart are severed. b. Some cardiac muscle cells are self-excitatory. c. The pacemaker of the heart is the sinoatrial node. d. Cardiac muscles join end to end to allow rapid communication. e. Cardiac muscles contract essentially in unison.
Name two forms of recombination in bacteria
A) conjugation and transduction B) insertion and replication C) auxotrophic and prototrophic D) mixed and generalized E) lytic and lysogenic