Describe the process that recycles oceanic crust
What will be an ideal response?
During the processes of subduction, old oceanic crust subducts beneath newer oceanic crust or continental crust. As it sinks it melts and then moves laterally and up to appear again at seafloor spreading centers where it forms new oceanic crust.
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Hairs on the leaf on the yellow bush lupine act to ________
a. deter herbivores b. shelter nitrogen-fixing bacteria c. trap moisture d. feed ants that defend the plant
Which of the following brain structures is associated with the formation of new memories?
a. The hypothalamus b. The hippocampus c. The basal ganglia d. The thalamus
A eukaryotic transcription unit that is 8,000 nucleotides long may use 1,200 nucleotides to make a protein consisting of approximately 400 amino acids. This is best explained by the fact that
A. many nucleotides are needed to code for each amino acid. B. there are termination exons near the beginning of mRNA. C. many noncoding stretches of nucleotides are present in eukaryotic DNA. D. there is redundancy and ambiguity in the genetic code. E. nucleotides break off and are lost during the transcription process.
Primates need to groom their fur for parasites. Grooming can be either done cooperatively by another indi-vidual or individuals can groom themselves
Grooming oneself requires more time and energy than grooming another individual. What corresponds in this system to the following elements of the prisoner's dilemma? P = Punishment for mutual defection: R = Reward for mutual cooperation: S = "Sucker's" payoff: T = Temptation to defect: What will be an ideal response?