Darwin Would Be Proud
True or False: A change to the environment can lead to a population of organisms evolving over time.
True
Peacock spiders performing a mating dance for a potential mate is an example of ___________ isolation
behavioral
mutations
Organisms better adapted for their environment are more likely to _________ and ___________
survive and reproduce
All the Galapagos finches had a different sized beak is an example of which one of Darwin's principles in his theory of natural selection?
Variation
Squirrels separated by the grand canyon is an example of __________ isolation
geographic/habitat
Why is the rise of antibiotic resistant bacteria concerning to human health?
There are fewer treatments that can effectively treat infections!
True or False: Individuals evolve over time, not populations.
false
The finches that had the bigger beaks were able to survive the drought is an example of which of Darwin's principles in his theory of natural selection?
Favorability (advantageous traits)
Red sea urchin sperm cannot fertilize a purple sea urchin egg, this is an example of _________ isolation
gametic
Describe how antibiotic resistant bacteria evolve
Random mutations allow individuals to survive antibiotics and pass on those favorable traits to future generations
How does camouflage help prey survive?
they can hide from predators
Finches with large beaks can break open large hard seeds where as finches with smaller beaks eat smaller seeds. After a drought all of the small seed plants died. What do you predict will happen to the average bird beak size
Beaks will become larger on average
Two species of snail that live in the same habitat have differently shaped reproductive organs, this is an example of ___________ isolation
mechanical
What human practices are leading to the development of resistant bacteria?
overuse or improper use of antibiotics
_________________ says the environment selects for beneficial genes, increasing their frequency.
natural selection
More birds are born than will make it to adulthood and reproduce is an example of which of Darwin's principles in his theory of natural selection?
Overproduction of offspring
The offspring of two organisms that are considered different species is called a _____________. (like a donkey and horse can produce a mule)
hybrid
True or false: antibiotic resistant bacteria make the symptoms of an infection worse
false, they just make treatment harder
Evolution states that all organisms evolved from a ____________?
common ancestor