A genealogical species definition includes fewer organisms than a biological species definition
Indicate whether the statement is true or false
TRUE
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pressure
What will be an ideal response?
Two species of tree frogs that live sympatrically in the northeastern United States differ in ploidy: Hyla chrysoscelis is diploid, and Hyla versicolor is tetraploid
The frogs are identical in appearance, but their mating calls, which females use to find mates, differ. Which difference most likely evolved first? A) polyploidy B) difference in mating calls C) Polyploidy and different mating calls must have evolved at the same time.
In which of the stages below does each chromosome consist of two DNA molecules? (I. metaphase, II. telophase, III. prophase, IV. anaphase)
A) I and III B) I, III, and IV C) I, II, and III D) I, II, III, and IV E) III and IV
Which feature distinguishes birds from the rest of the reptiles?
Select one: a. endothermic b. scales c. egg laying d. lungs e. four appendages