The human brain accounts for approximately 2% of the body mass but uses approximately __________% of the total energy and __________ consumed by the body
a. 10–15; calories
b. 16–20; oxygen
c. 18–30; carbon
d. 50–74; nitrogen
Correct Answer: b
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Answer the following statement(s) true (T) or false (F)
1.The blending theory of inheritance correctly describes the mechanisms by which offspring resemble their parents. 2. The principles of heredity worked out by Gregor Mendel apply to all living organisms. 3. A human body cell has 44 autosomes. 4. X-linked traits will be expressed more commonly in females than males. 5. Proteins are chains of nucleotides.
The footprints of Australopithecus, found at Laetoli, indicate that the australopithecines:
A. were imperfect bipeds who walked on the sides of their feet B. walked somewhat like modern gorillas C. were basically quadrupedal, but occasionally rose to a two-legged posture D. walked in a striding bipedal mode like modern humans
Whereas evolution happens at the level of the _____________, natural selection occurs at the level of ________________.
a. population / individual organism b. mutation / population c. individual organism / population d. mutation / DNA
In which kind of Greek drama were the actors both professional and unmasked?
a. tragedy b. comedy c. satyr plays d. mime e. tragicomedies