WorksheetsSummer School Biology - CH 13 - Section II and III Quiz
Total questions: 12
Worksheet time: 7mins
A dichotomous key is a tool used for identifying _________.
organisms
family trees
habitats
birds only
The more differences there are between the DNA sequences of two organisms,
the more recent their common ancestor
the farther apart they now live
the more distant their common ancestor
the closer their homologous structures
What has increased the rate of extinction?
biodiversity
mutation
habitat destruction
natural selection
A diagram that shows the evolutionary relationships among organisms is called a ____________.
family tree
phylogenetic tree
Punnett square
taxon
The variety in living organisms is called
biodiversity
taxonomy
natural selection
biological groupings
What is one tool scientists use to classify organisms?
calorimeter
fossil record
predator-prey relationships
food preferences
When grouping organisms into a particular kingdom, scientists consider cellular structure, the level of cell specialization, and
the organism's ability to inbreed
food value
the organism's method of obtaining nutrients
geographical location
Organisms that reproduce asexually are classified into species based on their
type and number of ribosomes
appearance and locomotion
cell shape, organelles, and DNA
size and coloration
What is one reason that bacteria are difficult to classify?
Their traits cannot be observed
Scientists have not studied their molecular structure
They do not fossilize easily
They lack membrane-bound organelles
New evidence suggests that crocodiles are more closely related to birds than they are to ________.
other living reptiles
their ancestors
each other
parakeets
