WorksheetsBiology Evolution
Total questions: 15
Worksheet time: 15mins
Mistakes or changes that occur int he DNA sequence are called....
adatations
Darwinism
mutations
natural selection
A scientist studying the evolution of a species of sea scallop wrote the following description of its evolution:
“The fossil record shows several periods of rapid speciation. Each period spans several thousand years. The speciation periods are separated by hundreds of thousands of years where no changes were observed. During the short speciation periods, many different species evolved rapidly.”
The scientist concludes that the evidence supports one form of evolutionary change. Which form is BEST supported by the evidence cited?
gradualism
coevolution
convergent evolution
punctuated equilibrium
Which cellular organelle is thought to have evolved from a prokaryote that was able to use oxygen?
chloroplast
Golgi apparatus
mitochondrion
ribosome
Which statement provides evidence that mitochondria MOST likely evolved when a primitive eukaryotic cell engulfed a prokaryotic bacteria?
Both mitochondria and bacteria have a circular DNA molecule.
Both mitochondria and bacteria have the same type of ribosomes.
Both mitochondria and bacteria have a double-membrane nucleus.
Both mitochondria and bacteria have the same amount of cytoplasm.
According to the fossil record, when did episodes of rapid speciation commonly take place?
while Earth’s continents were joined
while Earth’s habitats were stable
before major climatic changes
following mass extinctions
Which statement BEST explains why evolution is classified as a theory?
It is a set of hypotheses supported by scientific findings.
It has been proved by valid scientific experiments.
It explains observations more simply than other available models.
It is accepted by a majority of scientists working in relevant fields,
The discovery of a fossilized animal with teeth, a long bony tail, and feathered wings helped to establish which evolutionary sequence?
rodents to bats
reptiles to birds
aquatic organisms to land-based organisms
invertebrates to flying organisms
Fossil records indicate that species changes generally
stop when a species forms.
speed up with stable conditions.
take place over many generations.
are independent of the environment.
Rhinoceroses and horses are related. They have very similar digestive systems and an odd number of toes on their feet. Horses have one toe, and rhinoceroses have three. These facts BEST support which claim?
Horses and rhinoceroses share a common ancestor.
Horses and rhinoceroses are genetically identical.
Horses are the ancestors of modern rhinoceroses.
Horses have descended from modern rhinoceroses.
Which of the following scenarios BEST illustrates that two organisms likely share a common ancestor?
Ducks and platypuses both have developed bills for mouths.
Yeast can use the human version of a yeast gene to repair itself.
Arctic foxes and Arctic hares grow white coats as camouflage in winter.
Protozoans can enter the bloodstream and multiply in the liver, causing malaria.
According to the endosymbiotic theory, the outer membrane of the chloroplast originated from which organelle?
the lysosome of an engulfed prokaryotic cell
the chloroplast of an engulfed prokaryotic cell
the cell membrane of an eukaryotic host cell
the chloroplast of an eukaryotic host cell
Which of the following statements summarizes the results of our lab?
Bacteria with resistance were better able to survive, and they passed on this trait to their offspring
Bacteria with resistance were able to live longer and did not need to reproduce
Bacteria with resistance learned how to survive and taught their offspring how to survive too
Bacteria with resistance reproduced much faster than normal bacteria in all conditions
Which of the following best describes the concept of natural selection in the context of evolution?
A) The process by which organisms with favorable traits are more likely to survive and reproduce.
B) The random changes in the DNA sequence of an organism.
C) The gradual change in species over long periods of time.
D) The development of new species from a common ancestor.
What is the significance of the fossil record in understanding evolutionary biology?
A) It provides evidence of gradual changes in species over time.
B) It shows that all species have remained unchanged.
C) It indicates that species appear suddenly without any ancestors.
D) It suggests that evolution occurs only in aquatic environments.
Which experiment would best demonstrate the principle of adaptive radiation?
A) Observing the beak variations in finches on the Galápagos Islands.
B) Studying the color change in peppered moths during the Industrial Revolution.
C) Analyzing the genetic mutations in fruit flies in a laboratory setting.
D) Comparing the bone structures of whales and bats.
