If an organism's diploid cells have 40 chromosomes, then its haploid cells have
A) 80 chromosomes.
B) 40 chromosomes.
C) 20 chromosomes.
D) none of the above
C
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A weather forecast for the immediate future that employs the trend method is called
a. nowcasting. b. extrapolation. c. first order forecasting. d. linear forecasting. e. persistence forecasting.
Standard time zones
A) are 15° wide because Earth rotates that distance in one hour. B) have yet to be generally established. C) are spaced at 5° intervals of longitude in North America. D) are arbitrarily set based on international political boundaries. E) are only used in the developed countries.
Spheroidal weathering is a form of physical weathering. Indicate whether the statement is true or false
Suppose the sky is completely covered with a thin, white layered-type cloud. You look at the
ground and see that objects cast a distinct shadow. From this you conclude that the cloud type must be: a. stratus. b. nimbostratus. c. cirrostratus. d. stratocumulus.