A genus is composed of a number of similar...
a) kingdoms
b) orders
c) phyla
d) species
Ans: d) species
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If conditions are aerobic, pyruvate flows directly into the __________ where some of its atoms are
converted next to __________. a. cytosol; oxaloacetate b. cytosol; ATP c. mitochondria; glucose-6-phosphate d. mitochondia; acetyl coenzyme A e. mitochondria; citrate
In sweet peas, dominant alleles C and P are necessary for colored flowers. In the absence of either (__ pp or cc __) or both (cc pp), the flowers are white. What the phenotypic ratios be for the cross of Cc pp x cc Pp?
A. 1/4 color, 3/4 white B. 9/16 color, 7/16 white C. 3/4 color, 1/4 white D. 1/4 color, 3/4 white E. 1/2 color, 1/2 white
As part of your research project, you travel to an island to learn more about the habitats and relationships of spiders, centipedes, and insects. You and your assistant plot out five different areas of the island and count the numbers of spiders, centipedes, and insects living in each plot. Your results show the following: Plot Insects Spiders Centipedes1300254242617103147152147397805791393The hypothesis that closely matches the data provided is
A. spiders are the top predators on all islands. B. herbivorous insects feed on spiders and centipedes. C. herbivorous insects survive best on islands where spiders and centipedes live. D. herbivorous insects and spider populations are decreased by centipedes.
A child dies following a series of chronic bacterial infections. At the autopsy, the physicians are startled to see that the child's white blood cells are loaded with vacuoles containing intact bacteria. Which of the following explanations could account
for this finding? A) A defect in the Golgi apparatus prevented the cells from processing and excreting the bacteria. B) A defect in the rough endoplasmic reticulum prevented the synthesis of the antibodies (defensive proteins) that would have inactivated the bacteria. C) A defect in the cell walls of the white blood cells permitted bacteria to enter the cells. D) A defect in the lysosomes of the white blood cells prevented the cells from destroying engulfed bacteria.