Final Exam- Part Four Flashcards
What animals use positive pressure in their respiratory system?
Frogs
What animals use negative pressure in their respiratory system?
Reptiles and mammals
What a parabronchi?
Lungs of birds that channel air through tiny air vessels (parabronchi), where gas exchange takes place
Three major groups: Egg-laying, pouched, placental
Mammals
What structures do amphibians use for gas exchange?
Lungs, gills, and skin respiratory systems
Why do birds have a more efficient respiratory system than humans?
Birds don’t mix exhaled air with inhaled air. Max PO2 is higher in birds
What is coprophagy?
Eating feces
Describe how apes and human are related:
Humans and apes represent divergent lines of evolution from a common ancestor
What aids mammals in diving?
Heart rates slows, all major blood vessels constrict, metabolic rate slows, tissues switch to glycolytic metabolism
What kind of dinosaur is “Dino”?
Snorkasaurus
Why was there a switch in the beginning from RNA to DNA?
DNA is more chemically stable, replicates with fewer errors than RNA
What is an endospore?
Live in harsh conditions
The largest seaweeds belong to which group
Brown Algae
What phylum contains mushrooms, shelf fungi, and puffballs?
Basidiomycota
Roots and soil fungi have what symbiotic association?
Mutualistic
Stamen, Sepals, petal, carpels, and pine cones are examples of what?
Modified leaves
What tissues makes up most of the wood of a tree?
Secondary Xylem
Most of the dry weight of a plant is the result of uptake of:
CO2 through stoma
What do carnivorous plants lack?
Nitrogen
Which plants would not yet have been evolved to create coal deposits
Pine trees
Why don’t killer whale’s fins freeze?
Countercurrent heat exchange
