A plant evolves a high level of poison that enables it to defend itself against insects. Soon an insect that prefers to eat this plant evolves an enzyme that breaks down the poison. This is an example of Convergent evolution Punctuated equilibrium Adaptive radiation Coevolution

A group of one species of bacteria are exposed to an antibiotic.  The normal bacteria die but some are resistant to the antibiotic and start multiplying.  The resistant bacteria flourish and now make up the majority of the population.  This is an example of what?     Speciation     Reduction of Gene Flow     Natural Selection     Geographic Isolation

Which phenomenon describes individuals that do not share a common ancestor? O Convergent Evolution O Divergent Evolution Homologous Structures O Adaptation

Our earliest primate ancestors, such as eosimian (a prosimian) Group of answer choices   were bipedal.   were major carnivores and hunted herd animals.   lived in trees, avoided dinosaurs and ate bugs.   spent as much time on the ground as in trees and ate bugs.

When the Galapagos Islands were surveyed by Darwin, he noted 13 species of finches. Later he published the proposal that: too many species of finches overcrowded the islands finches probably evolved from one ancestral South American species the 13 finch species were identical to those he observed in northwestern South America 600 miles to the east finches evolved wings adapted for flying between specific islands all finches adapted to the same food sources

Reproductive isolation leads to induced mutations emergence of separate species immunity to genetic drift high rates of gene flow

Toxic river means rapid evolution for one fish speciesMarch 2011- Evo in the News, University of California-Berkeley Review the process of natural selection. Use the steps to explain how PCB resistance became so common among tomcod in the Hudson. Be sure to include the terms mutation, fitness, selective pressure, and adaptation in your explanation.

Which of the following does not increase the rate of adaptive radiation? A Competition for resources. Short generation times. C)A major environmental change. Two species that produce only infertile offspring.

Because mass extinction is a natural process that may facilitate evolution during the period of thousands to millions of years that follow it, should humans be concerned about the current mass extinction we are causing? Why or why not?

he Cretaceous extinction, which was the most recent mass extinction, occurred about 65.5 million years ago. What is the leading hypothesis to explain the Cretaceous extenction?     The Indian sub-continent collided with the Asian techtonic plate, giving rise to the Hymalayan mountains which altered the jet stream and caused the planet to enter an ice age     A new group of predators evolved that were significantly better at capturing prey, to the point that they drove many species (including other predators and eventually themselves) to extinction     Massive amounts of volcanic activity released tons of CO2, enough to significantly increase the temperature of the planet     An asteroid about 6 km in diameter collided with Earth, which vaporized the caribbean ocean, set fire to north and south America, and expelled enough dust into the atmosphere to block the sun enough to result in a winter like environment all across the globe for several years