What unit is used to measure the thermal energy that flows from an object of a higher temperature to an object of a
lower temperature?
a. kilograms
b. kilometers
c. kilowatts
d. kilocalories
e. kilojoules
d
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How would you best explain the correlation between an increase in Hox genes and an increase in animal body complexity?
A. Different Hox genes are expressed in different regions of the body. B. Hox genes have duplicated several times during animal evolution, but they are not responsible for an increase in body plan complexity. C. An increase in the number of Hox genes allows for greater specialization in different body regions. D. An increase in the number of Hox genes meant that fewer regulatory genes could be controlled in a species. E. As the number of Hox genes increases, the number of genes encoding proteins for appendage development decreases
Brown algae are most diverse and abundant along coastlines ____
a. at temperate latitudes b. at the equator c. bordering the Caribbean d. bordering the Indo-Pacific e. in polar regions.
How many nucleotides form the code for one amino acid?
A. 2 D. 5 B. 3 E. 6 C. 4
Which of the following is a possible side effect of immunization with an inactivated vaccine?
A. contact immunity B. allergic reaction C. residual virulence D. toxicity E. both allergic reaction and toxicity