Chickens have a similar bone structure, on a smaller scale, to Tyrannosaurus rex. Moreover, genetic analysis of proteins from modern chickens has revealed surprising similarities between the DNA of the two species. It follows that chickens are descended from T. rex. This is also evidenced by the fact that scientists believe dinosaurs were the first animals to evolve feathers. Which statement best represents the conclusion of the argument? a. Evidence suggests that dinosaurs were the first animals to evolve feathers.
b. Chickens have a similar bone structure, on a smaller scale, to T. rex.
c. Genetic analysis of proteins from modern chickens has revealed surprising similarities between the DNA of the two species
d. Chickens are descended from T. rex.

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.