C190 Intro to Biology OA

C190 Intro to Biology OA Leave the first rating Students also studied Terms in this set (70) Science Biology Ecology Save WGU C190 Intro to Biology 311 terms ellen_nicole_allen Preview C190 Introduction to Biology Pre-As...70 terms quizlette36958794 Preview C190 Pre-Assessment 70 terms Kelli_Sanchez3 Preview Bio WG 329 term sara What item would be classified as Biotic?Fungus What Item is an atom?Nitrogen Largemouth bass have recently been introduced into ponds that previously did not contain any large, predatory fish. Which adaptation would help the existing population of small, prey species of fish avoid predation from the largemouth bass?Faster average swim speed If global climate change continues (as predicted) to increase the average temperature of habitats around the world, how would populations of spadefoot toads likely evolve in response to an increase in pond temperatures?Spadefoot toads would likely evolve to have a higher percentage of toads become carnivorous.Male peacocks compete with one another to mate female peacocks. Males with more colorful tail feathers attract female mates at a higher rate than those without.Therefore, male peacocks have colorful tail feathers, whereas female peacocks do not. What is this an example of?Sexual selection A gardener maintains a species of rose that produce either yellow flowers (the dominant phenotype) or white flowers (the recessive phenotype). One day, the gardener observes that a cross between two yellow rose bushes has led to a single rose bush with orange flowers. What evolutionary mechanism is involved in the change in the gene pool of this species?Mutation

Which two characteristics are found in organism C? Jaw and Lungs Where is the ancestor of wolves and gorillas, but not frogs, depicted on this cladogram?Point E Which organism has neither bones nor a jaw?Lamprey Which two organisms have eggs with shells?Crocodilians and Amphibians Which organisms have four limbs and produce amniotic eggs without shells?Primates and Rodents and Rabbits Which species on the following cladogram has the most similar DNA sequence to species E?D A subatomic particle has a negative charge and is found in a shell of the atom. What is this particle?An electron What is the charge of a proton?+1 (positive) A molecular bond results from an electron being transferred from one atom to another. Which type of bond holds these atoms together?Ionic Which situation describes covalent bonding?An atom shares an electron with another atom.After a rainy day, a leaf has small droplets of water on its surface. Which property of water is this an example of?Cohesion A plastic water bottle is filled with water and placed in the freezer. The next day the frozen water has expanded, causing the plastic bottle to rupture. Which characteristic of water is this an example of?Density A biological polymer consists of 358 amino acids linked together covalently. What is this polymer?A protein A molecule consists of a chain of glucose monomers linked together. What is the function of this molecule within the cell?To store energy Which substance is found in ATP?nitrogenous base During the Calvin cycle, a sugar molecule is formed as ATP is converted into ADP and a free phosphate group.What is happening to energy in this second step of photosynthesis?Energy is being released from ATP to power the conversion of a sugar molecule.Which of these is an output of the light-dependent reaction of photosynthesis?

ATP

Which molecule is an input to the Calvin-Benson cycle? Carbon dioxide Which stage of cellular respiration releases carbon dioxide as a product?Krebs cycle Which stage of cellular respiration releases the most energy and, therefore, produces the most ATP molecules?Electron transport chain In the human body, muscle fibers metabolize sugars to produce energy. Fast-twitch muscle fibers, like those used during short-term, vigorous exercise, carry out an anaerobic process that produces less energy per sugar molecule processed. Which metabolic process do fast- twitch muscle fibers carry out?Fermentation Fermentation uses sugar in the absence of which molecule?O2 What is the function of the flagellum?Locomotion and sensing What is true of a eukaryotic cell?It contains a mitochondrion.Choose the two substances that are the main components in most eukaryotic cell membranes.Lipids and proteins Some cells need to maintain a set concentration of Na+ and K+ ions. These cells are able to do this with the help of the Na/K pump, which transports these ions from areas of low concentration to areas of high concentration (against their concentration gradient). Na+ is pumped out, and K+ is pumped in. Which type of membrane transport is involved in this action?Active transport Chromosomes are structures that contain hereditary material that will be passed from one generation to the next. According to this information, which organic molecule must be present in chromosomes?

DNA A cell has divided its chromosomes into two new nuclei.The cytoskeleton of the cell is currently pinching the cell in the middle to form two new cells. In which stage of the cell cycle is this cell?Cytokinesis What is the function of the histones during S phase? Organizing and helping to unwind the DNA so the replication enzymes can access it How is DNA structured during the metaphase stage of mitosis?The centromere at the center keeps DNA lined up at the cell's equator.

What is true regarding the transition from metaphase to anaphase during mitosis?Sister chromatids are aligned along the center of the cell and then pulled apart into separate chromatids.Which stage of mitosis is depicted?prophase Sister chromatids are being separated and moving towards opposite poles of the cell. Which stage of mitosis is this?Anaphase A cell undergoing meiosis is currently dividing. The two new daughter cells will be haploid, but the DNA they contain is still replicated. The homologous chromosomes have separated and are ready to start the second division, but they have not yet begun the second round of division. Which stage of the cell cycle is this cell in?Telophase I Homologous pairs of chromosomes have separated into two cells. Sister chromatids in each cell have not yet lined up in the middle of the cell. Which stage of the cell cycle is this?Prophase II Which type of cell division results in sex cells?meiosis Which characteristic describes both meiosis and mitosis? Sister chromatids separate What is a characteristic of DNA but not RNA?It is intertwined with histone proteins.A fly is heterozygous for wing length, carrying one allele for the dominant long-winged appearance and one allele for the recessive short-winged appearance. Which percentage of the fly's gametes will carry the short- winged allele?50% Black (B) is the dominant color, and red (b) is the recessive color in a species of beetle. Two beetles that are both Bb are crossed. What percentage of the offspring will be red?25% A species of fish can either have dominant red fins (R) or recessive white fins (r). Fin lengths can either be dominant long (L) or recessive short (l). A dihybrid cross is performed on two of these fish. Each fish is heterozygous for the traits of fin color and fin length. Which four gamete genotypes can be produced by a parent fish?Rl, rl, RL, rL