Agar is produced by ____
a. brown algae
b. red algae
c. phycobilins
d. brown and red algae
e. red algae and phycobilins
ANSWER: b
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Blue flower color (B allele) is dominant to white (b allele). If a population of plants in Hardy-Weinberg equilibrium contains white flowers (bb) at a frequency of 0.04, what is the frequency of the heterozygous genotype?
A. 0.96 or 96% B. 0.2 or 20% C. 0.32 or 32% D. 0.64 or 64% E. 0.8 or 80%
Humans have small mites that live in hair follicles and oil glands around the nose and eyelashes. What
would you need to know to classify them as exhibiting mutualism, commensalisms, or parasitism? What will be an ideal response?
The Florida panther, Puma concolor coryi, is one of the most threatened species on Earth, with only 80-00 individuals remaining. Their population is most threatened by humans, habitat loss, and their own poor health due to genetic diseases. Some conservationists want to introduce new individuals from Texas, the mountain lion, Puma concolor. Scientists are currently uncertain whether the Florida panther and the Texas mountain lion are the same or different subspecies.What level of biodiversity in the panther population are scientists most concerned with?
A. Species diversity B. Population diversity C. Local diversity D. Genetic diversity E. Ecosystem diversity
A reflex pathway is the simplest pathway because it _____.
A. involves only one synapse B. is evaluated and integrated by the medulla, not the cerebrum C. does not involve conscious thought or learning D. does not involve the central nervous system in any way E. involves only one neurotransmitter