If 10,000 kilocalories (kcal) of energy were contained in the primary producers (trophic level 1), on average how many kcal of energy would you expect to be transferred to second-order consumers (trophic level 3)?
A) 10,000 kcal
B) 1,000 kcal
C) 100 kcal
D) 10 kcal
E) 1 kcal
C
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Species interactions help prevent any one population from becoming too large.
Answer the following statement true (T) or false (F)
A distinctive characteristic of prokaryotes is ________
A) their oxygen based metabolism B) their lack of a separation between the DNA and the rest of the cell C) their thick cell walls that separate the DNA from the rest of the cell D) their ability to produce sugars E) their methane based metabolism
A star in which light cannot escape because of the immense gravitational pull is called a(n) ________
Fill in the blank(s) with correct word
A ___________________ would lead a large greenhouse gas emitter to reduce emissions by less.
A. flat charge B. higher pollution tax C. lower pollution tax D. pollution tax