BIOL 2200 Exams Pack Questions and Verified Answers | Passed | A

What kind of hypersensitivity is Anna experiencing and how do you know? : Hypersensitivity Type 1, her total serum IgE was high. Why won't someone experience any allergy symptoms when stung previously? : They aren't sensitized at that point, there is not enough IgE antigen bound. Decsribe the ...

Which molecule is responsible for removing torsional stress during DNA replication? : DNA gyrase Which DNA repair pathway uses the methylation of the template strand of a guide for fixing errors? : methyl mismatch repair _____________ prevent transcription, whereas ____________ stimulate trans...

Aristotle : earliest philosopher; species are FIXED; scale of nature: low complexity to high complexity James Hutton : geologist; gradualism-earth is old and shaped by small SLOW changes Thomas Malthus : economist; "Essay of the Principle of Population"; human population growth is LIMITED...

the advantage of excreting nitrogenous wastes as urea rather than as ammonia is that ______. : urea is less toxic than ammonia Birds, insects, and many reptiles excrete nitrogenous waste in the form of uric acid, which ______. : reduces water loss compared to other nitrogenous wastes, but req...

A fish is excreting large volumes of water; we would describe it as ______________________ relative to its environment. : An osmoregulator that is hyperosmotic. Which of the following animals likely makes the most nitrogenous waste? A. Frugivorous Bat B. Insectivorous Frog C. Piscivorous Seal...

The theory of evolution by natural selection does NOT assume that: A) populations produce more offspring than can be supported in most environments. B) traits within a population vary. C) some traits that give individuals an advantage within their environment are heritable. D) individuals with a...

extracellular enzymes : increase protection against host defenses and attack and kill host defensive cells to enable spread of infection two extracellular enzymes : coagulase & hyaluronidase coagulase : -pathogen produces coagulase -coagulase causes formation of a clot around pathogen -kina...

Which of the following animals generally has the lowest volume of urine production? freshwater flatworm vampire bat marine bony fish salmon in fresh water : marine bony fish Birds, insects, and many reptiles excrete nitrogenous wastes in the form of uric acid, which _________ : reduces wate...

Evolution : Descent with modification-- Charles Darwin Change in heritable traits (genes) over time; change in allele frequency from generation to generation evolution is a scientific theory : a comprehensive explanation, supported with substantial evidence (like the fossil record). we are v...

chapter 22 : natural selection The theory of evolution through natural selection is considered a scientific theory because __________. : All of the listed answers are correct.: - it is broad enough in scope to explain many observations -it is supported by a massive body of evidence from many ...

A fish is excreting large volumes of water; we would describe it as ______________________ relative to its environment. : An osmoregulator that is hyperosmotic. Which of the following animals likely makes the most nitrogenous waste? A. Frugivorous Bat B. Insectivorous Frog C. Piscivorous Seal...

A fish is excreting large volumes of water; we would describe it as ______________________ relative to its environment. : An osmoregulator that is hyperosmotic. Which of the following animals likely makes the most nitrogenous waste? A. Frugivorous Bat B. Insectivorous Frog C. Piscivorous Seal...

chordates : a member of the phylum chordata, animals that at some point during their development have a: 1. dorsal, hollow nerve chord 2. pharyngeal slits or clefts 3. muscular, post-anal tail 4. notochord notochord : a longitudinal, flexible rod made of tightly packed mesodermal cells that...

Using an example compare fundamental niche and realized niche of a species: : A species of mouse can live throughout throughout an area in Alberta because it has ideal temperature, but the species only live on the north side because their is not enough plants to hide them from predators. Funda...