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WorksheetsTEST: Evolution & Natural Selection
Total questions: 40
Worksheet time: 20mins
Which cell organelle MOST likely evolved from a prokaryote that was able to use oxygen?
chlorplast
golgi body
mitochondria
ribosome
Which of the following is an adaptation that plants and animals had to develop to adapt to life on land?
internal fertilization
prevent dehydration
respiratory system
All of these
Why is the fossil record incomplete?
Organisms didn't die in the right place to be preserved as fossils.
Many fossils have been destroyed by geologic processes.
Only a fraction of fossils have been found to date.
All of these
What adaptation did plants and animals have to make to move from life in the water to life on land?
How to reproduce & prevent dehydration
Structures to allow breathing under water
Structures to allow for survival without oxygen
No adaptations were needed
Which of the following statements is TRUE about population growth?
Population size is limited by available resources.
If populations grow exponentially, resources will increase to meet demand.
If populations grow exponentially, birth rate will continue to exceed death rate.
Plant and animal populations in nature do not mimic human population principles.
Which of the following was true about the animals that Darwin studied on the Galapagos Islands?
The tortoises all had different shells depending on the island they were from.
The finches all had different beaks depending on what island they were from.
The tortoises and finches had adapted from their original ancestor to life on their particular island.
All of these are true.
Which of the following BEST defines Natural Selection?
Species that are separated by a physical barrier will eventually develop into 2 different species.
Individuals with traits better suited to their environment are more likely to survive and reproduce.
Organisms can change the size and shape of certain body parts by using or not using them.
Organisms pass traits they acquire during their lifetime to their offspring.
What is the BEST definition of an adaptation?
The ability of an organisms to survive and reproduce.
When populations can't breed due to geographic separation.
The frequency with which a certain allele appears in the gene pool.
An inherited trait that increases an organisms chance for survival.
Which of the following is the best description for the comparison of a butterfly's wing to that of a bat's wing?
Homologous
Analogous
Vestigial
None of these
Which of the following will happen if a geographically isolated species is reintroduced after a long period of time?
They will be able to breed and produce viable offspring.
The will be unable to breed because they have diverged into 2 different species.
As long as the barrier is removed they will converge back into a single species.
It is not possible for a species to become geographically isolated.
Which of the following best indicates that genetic drift has occurred in a population?
A large number of a common rabbit species has been geographically separated by a highway.
An insect has wiped out thousands of elm trees in the southeastern United States.
A few of the only pesticide resistant insects on a local farm were killed during a heavy rain.
A once eradicated disease has sickened the entire population of penguins in Antarctica.
In a population of brown snakes, a snake is born with a white spotted pattern. Which factor will have the most influence on whether this trait will become common in the brown snake population?
The ability of the snake to survive and reproduce.
The appearance of other new traits in the baby snake.
The history of the pattern in previous snake populations.
The presence of thermal energy changing the snake pattern.
Which best explains why antibiotics lose their effectiveness over a period of years?
Antibiotics break down very quickly when digested in the body.
Antibiotics can kill bacteria only within the first few hours of illness.
Antibiotics are effective at first, but become weak before killing off harmful bacteria.
Antibiotics are effective at killing some bacteria, but the stronger bacteria survive and reproduce.
Hatchling sea turtles are typically dark in color. Occasionally, a sea turtle hatches that is almost white in color. When crawling from the nest on the beach to the ocean, this light-colored sea turtle could be at risk for sunburn. The light color of the turtle would most likely:
Help turtles have better chances at surviving.
Cause the shell of the turtle to become stronger.
Reduce the chances of surviving to reproduce.
Help develop a new species of sea turtle.
When the pesticide DDT was first used, it killed nearly every mosquito it touched. Within a few years however, many mosquitoes became resistant to DDT and survived. What enabled this to happen?
Meiosis
Migration
Immune Responses
Gene mutations
Which statement best explains why natural selection acts on an organism's phenotype rather than genotype?
More than one phenotype can result from the same genotype.
More than one genotype can result in the same pheotype.
Both homozygous genotypes result in the same phenotype.
Only heterozygous phenotypes result from the same genotype.
A genetic mutation has caused the fur color of field mice to contrast with their environment. This type of mutation will most likely:
benefit the mice
harm the mice
increase reproductive rates
decrease competition for resources
Two species of wood mouse live on opposite sides of a river. Which is a likely reason they have become a separate species?
The mate at different times.
They have different courtship rituals.
Their gametes cannot fertilize each other.
Geography prevents mating from occurring.
Who contributed to Darwin's theories with their observations of birth and death rate in populations?
Lamark
Malthus
Watson
Mendel
