The etiologic agent of which of the following bacterial diseases cannot be grown on artificial culture medium?
A) gonorrhea
B) leprosy
C) plague
D) salmonellosis
B) leprosy
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In Bacteria, a chromosome can be distinguished from a plasmid, because a chromosome is a genetic element that
A) is circular. B) is linear. C) encodes for essential functional genes. D) replicates via a bidirectional fork.
Which of the following is the chemical substance that allows the transmission of an impulse from a sensory neuron across a synapse to another neuron?
A. receptor B. hormone C. sodium D. neurotransmitter
This image depicts Volvox aureus, a green algae. This species exists only as a colony and is a member of which supergroup?
a. Rhizaria
b. Amoebozoa
c. Archaeplastida
d. Excavata
Identify and describe:A
three different ways in which leaves can be arranged on stems, and list one example for each. B. three different venation patterns in leaves and whether each is characteristic of eudicots or monocots What will be an ideal response?