BIO 1500 - TEST 7 Exam Questions And
Answers |Latest 2025 | Guaranteed Pass
Describe the likely response of Andean hummingbirds to climate change. - Answer✔-species
with high-alt HB become more favorable, species with low-alt HB become least favorable
-species migrate to higher elevations as sea level temperature increases
-random mutations or displacement to similar elevations with colder temps is the only way for
low-alt HB species to survive
-as low-alt HB species die off or are displaced, there is less competition for direct resources for
high-alt HB (increases survival)
Explain why Dr. Schul is studying katydids, even though he doesn't care about katydids. -
Answer✔-provides info about other species (SPECIFICALLY HOW THEY EVOLVE & WHAT
DRIVING FACTORS INFLUENCE SPECIATION)
-able to draw conclusions from easily
-helps to understand research questions that are essential to basic biology
Explain why we are still talking about geese. - Answer✔-provides framework to discuss
biological concepts in a context
-easy to make connections across units (protein biology/synthesis, evolution by natural
selection, phylogenetic, genetics/mutations, respiratory systems)
Protein structure & function (BIO-ORG/HIGH ALT BREATHING) - Answer✔-protein folding
-HB-O2 bonding
Evolution (BIO-ORG/HIGH ALT BREATHING) - Answer✔-phylogenetic trees
-speciation
-convergent evolution
Genetics (BIO-ORG/HIGH ALT BREATHING) - Answer✔-transcription/translation
-gene expression
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-mutations
Ecology (BIO-ORG/HIGH ALT BREATHING) - Answer✔-climate change impacts
-everest atmosphere
Physiology (BIO-ORG/HIGH ALT BREATHING) - Answer✔-bird/mammal respiration
-fetal development
Describe the structure of viruses - Answer✔-no cellular machinery
-no organelles
-simplest viruses = genetic material (DNA or RNA) in protein coat (capsid)
-cannot reproduce without host cell; must invade host cell & use that cell's machinery to
actually reproduce
Recall the features by which viruses are categorized - Answer✔size & shape of capsid
1. helical = long & thin
2. spherical = not perfectly round, resembles circle/oval
3. head-tail = most complex, can invade bacteria cell
genetic material
-DNA or RNA
-single or double stranded
-positive sense (read directly) or negative sense (has to be translated)
presence or absence of envelope (lipid bilayer around capsid)
Recall the general steps of viral reproduction - Answer✔1. attachment to surface of cell
2. enter cell or inject viral genome into cell
3. viral genes direct cell to produce viral proteins
4. viral proteins assembled into new virions
5. new virions leave cell
Know the features of Corona viruses - Answer✔-hosts are mammals & birds
-thousands of strains
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