The phosphorus in all biological tissues can be traced back to ________
A) phosphorus weathered from rock
B) atmospheric phosphorus gas
C) volcanic activities
D) phosphorus in animal bones
E) phosphorus dissolved in the ocean and taken up by shellfish
Answer: A
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Define “smart growth” and explain how “new urbanism” is related to smart growth.
What will be an ideal response?
Which of the following is often true of the active site of an enzyme?
A) It consists of amino acids near both the N-terminus and C-terminus. B) It consists of amino acids which are adjacent to each other. C) It consists of amino acids which not adjacent to each other. D) None of the above is true.
A child in which of the following countries would have the smallest environmental footprint?
A) Australia B) Namibia C) Brazil D) Canada E) Italy
Consider a simple food chain in which a grasshopper eats grass, the grasshopper is eaten by a frog, the frog is eaten by a snake, and a burying beetle feeds on the snake after it dies . Which of the following is not correctly matched
A) beetle—detritivore B) frog—secondary consumer C) grasshopper—herbivore D) snake—primary consumer E) grass—producer