Biology Questions

Graphically, the graduated model of speciation can be described as appearing as a ___. A) horizontal line with vertical branches B) W C) Y D) vertical line with horitzontal branches

The wing of a bald eagle is ___ the wing of a penguin. A) unrelated to B) convergent with C) analogous to D) homologous to

Which of the following is the only domain that contains eukaryotes? A) archaea B) eukarya C) animalia D) plantae

Which of the following would be an example of paedomorphosis? A) starfish regenerating several limbs B) the ability to reproduce evolved in catepillars C) rapid evolution in a small, isolated population D) two species evolving a similar appearance

Sympatric speciation specifically excludes ___. A) temporal isolation B) post-zygotic barriers C) behavioral isolation D) geographic isolation

A pattern of evolution in which most change in appearance takes place during a relatively short period of time fits the ___ model of speciation. A) punctuated equilibrium B) gradual C) homeostatic D) punctuated gradual

A period of mass extinction is often followed by ___. A) global cooling B) equilibrum C) explosive diversification D) nonbranching evolution

Speciation requires ____. A)periods of rapid evolutionary change B)genetic isolation C)geographic isolation D)long periods of time

Plate tectonics has been responsible for instances of all of the following except A) allopatric speciation B) volcanic explosions C) sympatric speciation D) mass extinction

Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. This switch in function is an example of ___. A) paedomorphosis B) an exaptation C) punctuated equilibrium D) convergent evolution

The current geological era is the ___. A) paleozoic B) cambrian C) mesozoic D) cenozoic

Which of the following describes allopatric speciation? A) a tetroploid plant species evolves from a diploid ancestor. Both the tetroid and diploid species are found in the same habitat B) a population of squirrels by the Grand Canyon. The two subpopulations evolved into two distinct species C) a male horse and a female donkey mate, producing a sterile hinny D) one population breads in the fall; another population breads in the spring

Some fish have bony fins. If the body of water they are in dries out, these fins can be used to help the fish "walk" to another body of water. A) an exptation B) neoteny C) paedomorphosis D)) punctuated evolution

Which of the following can create new alleles? A) mutation B) genetic drift C) natural selection D) sexual reproduction

When brought together in a zoo, two species are capable of mating and producing fertile offspring. Why may they still be considered two distinct species? A) the two species look very different B) in the wild, members of one species prey upon member sof the other species C) wild populations of the two species have different georgraphic distributions D) zoos are not natural environments

What does evolutionary fitness measure? A) longevity B) relative reproductive success C) physical health D) population size

When two frog species mate the offspring die early in embryonic development. This is an example of ___. A) reduced hybrid variability B) reduced hybrid fertility C) mechanical isolation D) hybrid sterility

What type of reproductive isolating mechanism is described by a situation in which female fireflies only mate with males who emit light in a particular pattern? A) habitat isolation B) mechanical isolation C) behavioral isolation D) temporal isolation

A reproductive barrier that prevents species from mating is an example of ____. A) reduced hybrid viability B) prezygomatic barrier C) zygote mortality D) postzygomatic barrier

The founder effect differs from a population bottleneck in that the founder effect ___. A) can only occur on an oceanic island colony B) requires a small population C) involves the isolation of a small colony of individuals from a larger population D) is a type of natural selection