Which of the following can be determined by interpreting a cladogram?
a) the number of species in a particular kingdom
b) the derived characters that differentiate species on the cladogram
c) the feeding relationships between species
d) the exact number of years two species have been separate
Ans: b) the derived characters that differentiate species on the cladogram
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Deoxyribose is
a. a five-carbon sugar. b. present in RNA. c. a nitrogen-containing base. d. one type of purine.
Members of the Enterobacteriaceae produce toxins known as (enterotoxins/hemolysins/siderophores) to capture iron for their use
What will be an ideal response?
When a rabbit eats a bean plant, a portion of the available energy moves into the rabbit's body. When the rabbit is eaten by a hawk, a portion of the available energy moves into the hawk's body. Indicate the various areas that energy is used by an organism, and why only 10% of the rabbit's available energy will move to the hawk.
What will be an ideal response?
You read that the frequency of a particular disease-associated recessive allele in a population is 12%. What does that mean?
A) 12% of the population has the disease caused by that allele. B) 12% of the population is a carrier for that disease. C) For every 100 people, there are 12 copies of the allele. D) The allele is present in 12% of the cells in your body.