This type of solution is often used intravenously to quickly rehydrate patients. In this case, the Mexican population of the speckled leaf spot was isolated from the general population. B Glycolysis is a universal energy-releasing process and therefore suggests a common ancestor for all forms of life. B is the opposite of what we expect; it would be logical if it played a prominent role in digesting carbohydrates. D Plants generally use starch molecules for storage while animals use glycogen and fats for storage. B Bacteria lack introns while many eukaryotic genes contain many of these intervening sequences.
In a hypothetical population of beetles, there is a wide variety of color, matching the range of coloration of the tree trunks on which the beetles hide from predators. Part B of Section I consists of 6 grid-in questions, in which you will need to integrate your math and science skills in calculating the correct answers. The lightercolored beetles were found more easily by the predators than were the darker-colored beetles 45. D The person would produce greater amounts of dilute urine. The results of Miller's experiments best support which of the following hypotheses? This disease has the potential to cause significant grain loss if the environmental conditions are favorable for their spread.
Which of the following is most likely responsible for the seasonal change in coat color? Experimental evidence shows that the process of glycolysis is present and virtually identical in organisms from all three domains, Archaea, Bacteria, and Eukarya. Does a great job of covering the most important math concepts. Below are the results: In Australia, only a relatively small number of individuals arrived on this continent with the introduction of modern agriculture, and therefore Mycosphaerella graminicola causes a disease known as speckled leaf spot on wheat. If Varsity Tutors takes action in response to an Infringement Notice, it will make a good faith attempt to contact the party that made such content available by means of the most recent email address, if any, provided by such party to Varsity Tutors. A The metabolic pathways of fish do not normally involve nitrogen consumption. D Finches were captured and bred in 1981, and the beak size of the offspring was measured 8.
B All organisms have the ability to utilize oxygen to harness energy from the chemical breakdown of organic compounds. Stand alone questions are your average multiple choice question and make up a little over half of the questions in the section. D The sequences of the genes encoding the FtsZ and tubulin proteins are identical. Which of the following statements best supports the claim that organisms share fundamental processes as a result of evolution? The area covered by tropical rain forest is reduced by millions of hectares per year due to agriculture and logging. Hanley Rd, Suite 300 St. D The molecules essential to life today were initially self-replicating proteins that were synthesized approximately four billion years ago. Most of the horses die except for the heaviest males and heaviest females of the group.
B Viral transmission of genetic information required to synthesize tryptophan occurs. A The molecules essential to life today did not exist at the time Earth was first formed. A sample of human blood was placed in a test tube containing a physiological saline solution 0. A All organisms that are introduced into new environments have the capacity to fill vacant ecological roles. A Exchange of genetic information occurs through crossing over. C Competition for mates in the spring causes each fox to increase its camouflage with the environment by producing a darkerappearing coat. The cecum evolved to have an important role in the digestion of protein, since it is shorter in species B and C than in species A and D.
This trend in oxygen consumption is the opposite of that in the mice. A population from Alaska experienced a similar bottleneck around that time, but it was not as severe. This is most likely because A yellow-leaved seedlings were unable to absorb water from the paper towels B taller green-leaved seedlings blocked the light and prevented photosynthesis C yellow-leaved seedlings were unable to convert light energy to chemical energy D a higher rate of respiration in yellow-leaved seedlings depleted their stored nutrients 30. A A loss of food supply for the finches B The end of the drought C An increase in drought conditions D An increase in predators consuming finches 15. Students should be prepared to analyze phylogenetic relationships, food webs, inheritance patterns, and symbiotic interspecies relationships.
Your Infringement Notice may be forwarded to the party that made the content available or to third parties such as ChillingEffects. T he following diagram shows energy transformations within a cell. B A medication enters the target cell and inhibits an enzyme that normally synthesizes a second messenger. The FtsZ protein is present in prokaryotes and in chloroplasts. Questions are sorted by topic and include a wide variety of bio topics as well as supporting chemistry concepts. The correct answer is A.
Species A is more closely related to species D than to species B, because A and D are both herbivores. You have 90 minutes to complete each section, and each section will account for half of your grade. A Finches with bigger beaks are better able to crack thick-walled seeds and produce more surviving offspring. Which of the following best explains why freshwater fish do not convert ammonia to urea for excretion? Whether you need , , or , working with a pro may take your studies to the next level. The following table lists the diets of several vertebrates, as well as the average length of the cecum as measured in 20 individuals of that species. Allozymes are enzymes that show different rates of movement in gel electrophoresis due to the presence of different alleles at a single locus, whereas F is the fast-moving allele, and S is the slow-moving allele. Hardy-Weinberg equilibrium and population genetics will also be tested.
Species Average Cecum Length Diet A 40. A At higher osmolarity, lower rates of contraction are required because more salt diffuses into the paramecia. Allozymes are enzymes that show different rates of movement in gel electrophoresis due to the presence of different alleles at a single locus, whereas F is the fast-moving allele, and S is the slow-moving allele. The test is only offered once per year. Three possible outcomes are diagrammed below. This disease has the potential to cause significant grain loss if the environmental conditions are favorable for their spread. There are 8 questions in the free response section, with each question generally containing 2 to 5 individual parts.