The first (capitalized) word of an organism's two-part scientific name denotes the _________.
Fill in the blank(s) with the appropriate word(s).
genus
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Studies have shown that in the flowering plant Arabidopsis the development of parts of a flower is governed by ____
a. differential uptake of hormone signals from the leaves b. the oxygen gradient from outside to inside of the closed flower c. differentiation of cell types as they are formed from the apical meristem d. the timing of cell division e. the expression patterns of several floral organ homeotic genes
Antibiotics are effective against covid 19
a. true b. false
Choose the phrase that best represents microevolutionary change.
A. darker skin after hours spent in a tanning booth B. major episodes of extinction C. changes in allele frequency in a population D. new forms of animals replacing older ones
Antitoxins
A. include capsule material against the pneumococcus and meningococcus. B. contain purified, chemically denatured bacterial exotoxin. C. contain antibodies to neutralize specific toxin. D. use vaccinia virus with genetic material of bacterial toxins. E. contain attenuated organisms.