Which of these insectivorous plants does not use an active trapping mechanism?
A. pitcher plants
B. Venus flytraps
C. sundews
D. the aquatic waterwheel
E. bladderworts
A. pitcher plants
Pitcher plants curl their leaves into a pitcher-like shape. Inside the rim of the pitcher, they secrete a sugary solution. When insects and small animals try to feed off of the solution, they fall down to the bottom of the pitcher which is filled with water and digestive enzymes.
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DNA fingerprinting is limited to human studies
Indicate whether the statement is true or false.
When experimenting with Streptococcus pneumoniae in the 1920s, Griffith concluded that some substance from the dead S strain bacteria passed to the R strain bacteria, imparting virulence and the ability to form a capsule. Avery and others continued the search for the substance that "transformed" the R strain into the S strain.Hypothesis I:Genetic material or "transforming substance" is protein.Hypothesis II:Genetic material or "transforming substance" is RNA.Hypothesis III:Genetic material or "transforming substance" is DNA.In an experiment, neither heat-killed R strain nor heat-killed S strain killed the mice. This finding
A. supports Hypothesis I. B. supports Hypothesis II. C. supports Hypothesis III. D. rejects Hypothesis I only. E. rejects Hypothesis II only. F. rejects Hypothesis III only. G. does not support or provide information to reject any of these hypotheses.
In animals, somatic cell lines are those that will undergo meiosis, differentiate into gametes, and be set
aside early in development. _________________ Indicate whether the statement is true or false.
What is the Principle of Parsimony?
A. The most complex explanation of data is preferable over less complicated explanations. B. The simplest explanation of data is preferable over more complicated explanations. C. The simplest explanation is always true. D. The most complicated explanation is always false.