When one tallies the species in a community by numbers of individuals, one typically finds that:
A) all species have about the same number of individuals.
B) most species are dominant, whereas a few others are represented by relatively few individuals.
C) a few species are dominant, whereas most others are represented by relatively few individuals.
D) there is no general pattern in the relative abundances of species.
Ans: C) a few species are dominant, whereas most others are represented by relatively few individuals.
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Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island biogeography principles, to answer the question(s) below
Which island would likely have the greatest species diversity? A) A B) B C) C D) D E) E
Explain how Escherichia coli can grow with a doubling time of 20 minutes when chromosome replication takes 40 minutes
What will be an ideal response?
The three primary meristems are the ____________, which forms the epidermis; the procambium, which produces primary vascular tissues (primary xylem and primary phloem); and the ground meristem, which differentiates further into ground tissue.
Choose the letter of the best match: A. protoderm B. vascular cambium C. apical meristem D. procambium E. ground meristem
During which stage do sister chromatids separate?
a. meiosis II b. meiosis I c. mitosis d. both mitosis and meiosis II