In Studies of Two Species of Barnacles in the Marine

question 25

Multiple Choice

In studies of two species of barnacles in the marine intertidal zone it was observed that Chthamalus can live in the upper intertidal zone and the lower intertidal zone if Semibalanus is absent,and Semibalanus can only live in the lower zone because it is more subject to dehydration.Based on this,which of the following statements is false?

• A)The realized niches of the two species differ.
• B)The fundamental niche of Chthamalus is larger than its realized niche.
• C)The fundamental niche of Chthamalus is larger than the fundamental niche of Semibalanus.
• D)The fundamental and the realized niches of Chthamalus are the same.
• E)The fundamental and the realized niches of Semibalanus are the samE.

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Definitions:

Chargaff's Rules

Empirical rules stating that in any sample of double-stranded DNA, the amount of adenine (A) equals thymine (T) and the amount of guanine (G) equals cytosine (C).

Base Pairs

Base pairs are the pairs of nitrogenous bases that connect the complementary strands of DNA, consisting of adenine with thymine and cytosine with guanine in DNA.

Purine

A type of nitrogenous base found in DNA and RNA, which includes adenine and guanine.

Pyrimidine

A category of nitrogenous bases that includes cytosine, thymine, and uracil, which are fundamental components of nucleic acids.