0 comments
Which protists are part of the Unikonta supergroup?
Amoeba and choanoflagellates
Choanoflagellates and alveolates
Diatoms and dinoflagellates
Which supergroup do protists with chloroplast pigments, like green algae, belong to?
Excavata
Chromalveolata
Which bacteria include those that make us sick, such as E. coli and Salmonella?
Gamma proteobacteria
Alpha proteobacteria
Cyanobacteria
Which prokaryotic domain is most closely related to animals and protists?
Archaea
Eukarya
Bacteria
The many species of cichlids of Lake Victoria are an example of which evolutionary process?
Allopatric speciation
Sympatric speciation
Habitat isolation
The ancestor of which bacteria was the first to photosynthesize, drastically changing earth’s atmosphere?
A mule, which is a hybrid, cannot produce its own offspring due to which type of barrier?
Hybrid inviability
Hybrid breakdown
Hybrid sterility
Speciation can occur without geographic isolation with which type of speciation event?
Gametic speciation
The reproductive isolating mechanism in which two closely related species live in the same geographic area but perform very different mating rituals is
habitat isolation
behavioral isolation
gametic isolation
A cross between 2 species of sunflowers with fertilization occurring, but the embryos die before reaching maturity is which type of barrier?
A bee that can’t reach into the pollen tube of a plant the way that a butterfly can demonstrates
mechanical isolation.
behavioral isolation.
gametic isolation.
Two species of flycatchers (birds) do not mate in Minnesota because one lives in the forest while the other lives in the open grasslands demonstrates which isolating mechanism?
Temporal isolation.
Mechanical isolation.
The fossil record has illustrated evolutionary changes in which one of the following aspects of modern horses?
As the landscape shifted from dense forest to open grasslands, teeth got larger and the number of toes was reduced.
Brains got larger as they needed to outsmart predators.
Since grasses are easier to chew, teeth became smaller.
A postzygotic barrier prevents
the fertilization of gametes.
reproductive success by an interspecific hybrid
the union of egg and sperm.
Traits that are similar in function, but evolved independently, not from a recent common ancestor, is called
homologous.
vestigial.
homoplastic.
Traits that are nonfunctional or remnants of functional structures in ancestors are called
Genes that are exchanged between organisms from unrelated taxons, instead of inherited through descent is called,
Descent gene transfer
Horizontal gene transfer
Vertical gene transfer
Dolphins and humans both have the ability to nurse their young, whereas the less closely related sharks do not. The ability to nurse their young would be called…
an ancestral trait of all vertebrates.
a shared derived character of fish and mammals.
a shared derived character of mammals.
A group of organisms descended from a common ancestor, and some but not all the descendants is called
Monophyletic
Polyphyletic
Paraphyletic
About the Author
Daniel Kevins
Follow me
0 comments