According to biological species concept, a new species arises if the members of the population_______
A. Form a new branch in a phylogenetic tree.
B. Are geographically isolated from those in other populations.
C. Develop distinct morphological appearances from those in other populations.
D. Are reproductively isolated from those in other populations.
Ans: C. Develop distinct morphological appearances from those in other populations.
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Consider the example of the Lime Swallowtail, Papilio demoleus, described in your book. On the Island of Hispaniola, which type of spatial distribution would you expect for this species?
A. random B. clustered (clumped) C. overdispersed
Certain plants may form tissues called ________ when their roots are flooded, whereas other plants may always form these tissue types.
A. parenchyma B. collenchyma C. sclerenchyma D. aerenchyma E. None of the choices is correct
People with albinism carry two copies of the dominant allele (AA) and cannot make a pigment called melanin
a. True b. False Indicate whether the statement is true or false
Cnidarians play a significant role in the population management of zooplankton and therefore fish populations
Indicate whether the statement is true or false