Anatomy and Physiology I Final exam test bank 2020/2021 edition (questions and answers 100% correct aid grade ‘A’)

Question 1 Correct 1.00 points out of 1.00 Flag question Question text In an ecosystem, energy Select one: a. comes ultimately from bacteria b. cycles along with chemical nutrients c. typically flows from producers through a series of consumers d. typically flows from consumers to producers to decomposers Question 2 Correct 1.00 points out of 1.00 Flag question Question text Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hierarchy from least inclusive to most inclusive? Select one: a. organism, organ system, tissue, population, organ, organelle, community, cell, ecosystem, molecule b. ecosystem, population, organ system, cell, community, molecule, organ, organism, organelle, tissue c. molecule, organelle, cell, tissue, organ, organ system, organism, population, community, ecosystem d. cell, molecule, organ system, organ, organelle, population, tissue, organism, ecosystem, community Question 3 Correct1.00 points out of 1.00 Flag question Question text Organisms that are prokaryotes are in the domains Select one: a. plantae and Animalia b. bacteria and Archaea c. fungi and Bacteria d. eukarya and Archaea Question 4 Correct 1.00 points out of 1.00 Flag question Question text A theory is Select one: a. an idea that has been proven b. an explanation of an idea that is broad in scope and supported by a large body of evidence c. a description of a belief that invokes the supernatural d. a concept in the early stages that still needs to be tested Question 5 Correct 1.00 points out of 1.00Flag question Question text To be scientifically valid, a hypothesis must be Select one: a. testable and falsifiable b. controlled c. reasonable d. part of a theory Question 6 Incorrect 0.00 points out of 1.00 Flag question Question text Members of the kingdom Animalia Select one: a. are composed of cells that lack a cell membrane b. can obtain their food by eating other organisms c. make their own food through photosynthesis d. can obtain their food either by absorption or by photosynthesis Question 7 Correct 1.00 points out of 1.00 Flag questionQuestion text An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria Select one: a. to die out due to the drastic decrease in population size b. to be more contagious than the prior generation c. to be more resistant to that antibiotic d. to be just as susceptible to that antibiotic as was the previous generation Question 8 Correct 1.00 points out of 1.00 Flag question Question text A scientist performs a controlled experiment. This means that Select one: a. one experiment is performed, but the scientist controls the variables b. the experiment is repeated many times to ensure that the results are accurate c. two experiments are conducted, one differing from the other by only a single variable d. the experiment proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data Question 9 Correct 1.00 points out of 1.00 Flag question Question textThe teeth of grain eating animals, such as horses, are usually broad and ridged. This makes the teeth suitable for grinding and chewing. Meat eating animals, such as lions, have pointed teeth that are good for puncturing and ripping flesh. This illustrates Select one: a. a result of natural selection as well as the connection between form and function b. the connection between form and function only c. a food web d. a result of natural selection only Question 10 Correct 1.00 points out of 1.00 Flag question Question text The role of a control in an experiment is to Select one: a. provide a basis of comparison to the experimental group b. ensure repeatability c. counteract the negative effect of the experiment d. prove that a hypothesis is correct Question 11 Correct 1.00 points out of 1.00 Flag question Question text If you eat a hamburger, you are mainly eating ground up beef muscle. What levels of organization are represented in this ground up muscle? Select one:a. organism, population, and community b. tissue, organ, and organ system c. organelle, cell, and tissue d. organ, organ system, and organism Question 12 Correct 1.00 points out of 1.00 Flag question Question text Which of the following statements about genetics is true? Select one: a. dna is made up of six different kinds of nucleotides b. differences among organisms reflect different nucleotide sequences in their DNA c. genes are proteins that produce DNA d. each DNA molecule is a single strand of nucleotides Question 13 Correct 1.00 points out of 1.00 Flag question Question text The ultimate source of energy flowing into nearly all ecosystems is Select one: a. wind b. radioactivity c. electricityd. sunlight Question 14 Correct 1.00 points out of 1.00 Flag question Question text All organisms belonging to the kingdom Plantae Select one: a. are multicellular and lack a nucleus b. are unicellular and lack a nucleus c. are photosynthetic d. obtain food by decomposing the remains of dead organisms and absorbing the nutrients Question 15 Correct 1.00 points out of 1.00 Flag question Question text Kingdom Fungi includes species Select one: a. such as mushrooms and plants b. that obtain food by ingestion c. that use photosynthesis to obtain food d. that obtain food by decomposing dead organisms and absorbing the nutrients Question 16 Correct1.00 points out of 1.00 Flag question Question text The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels, and millions of bacteria. Together, all of these organisms represent Select one: a. a species b. a community c. a population d. an ecosystem Question 17 Correct 1.00 points out of 1.00 Flag question Question text You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This prediction is an example of Select one: a. an experiment b. a type of observation c. a hypothesis d. an experimental question Question 18 Correct 1.00 points out of 1.00Flag question Question text Which of the following statements about ecosystems is false? Select one: a. Chemical nutrients cycle within an ecosystem b. Plants and other photosynthetic organisms are producers in ecosystems c. In the process of energy conversions within an ecosystem, some energy is converted to heat d. bacteria and fungi recycle energy within an ecosystem Question 19 Correct 1.00 points out of 1.00 Flag question Question text Which of the following statements about the properties of life is false? Select one: a. all organisms have the ability to reproduce b. all organisms have the ability to respond to stimuli from the environment c. all organisms have the ability to maintain a constant internal temperature d. all organisms have the ability to take in energy and use it Question 20 Correct 1.00 points out of 1.00 Flag questionQuestion text A hypothesis is Select one: a. a proposed explanation for a set of observations b. the same as a theory c. a widely accepted idea about a phenomenon d. an explanatory idea that is broad in scope and supported by a large body of evidence Question 1 Correct 1.00 points out of 1.00 Flag question Question text Typically, nitrogen atoms are composed of electrons, protons, and neutrons. An isotope of nitrogen could Select one: a. have more neutrons than the usual nitrogen atom b. be positively charged c. have more protons than the usual nitrogen atom d. be negatively charged Question 2 Correct 1.00 points out of 1.00 Flag question Question textWhich of the following is a trace element in the human body? Select one: a. nitrogen b. oxygen c. zinc d. hydrogen Question 3 Incorrect 0.00 points out of 1.00 Flag question Question text Radioactive isotopes Select one: a. can be used in conjunction with PET scans to diagnose diseases b. are never incorporated into organic compounds c. are frequently added to foods as nutritional supplements d. do not occur naturally Question 4 Correct 1.00 points out of 1.00 Flag question Question text If you found a fossilized dinosaur bone, what method could be used to determine the age of the fossil? Select one: a. electrophoresis b. radial immunodiffusionc. isotope analysis d. DNA fingerprinting Question 5 Correct 1.00 points out of 1.00 Flag question Question text Waters surface tension and heat storage capacity is accounted for by its Select one: a. size b. hydrogen bonds c. mass d. orbitals Question 6 Correct 1.00 points out of 1.00 Flag question Question text Photosynthesis requires many steps to make glucose. As a result of the synthesis process, Select one: a. all the carbons from the six carbon dioxide atoms are found in glucose b. more carbon dioxide is released from the plant than is absorbed c. more atoms are present at the beginning than at the end d. water is synthesized by the plant from H2 and O2Question 7 Correct 1.00 points out of 1.00 Flag question Question text In the equation 2 H2 + O2 is equal to 2 H2O, the H2 molecules are ________ and the H2O molecules are ________. Select one: a. reactants, products b. products, reactants c. created, destroyed d. used, stored Question 8 Correct 1.00 points out of 1.00 Flag question Question text Which of the following statements about radioactive isotopes is true? Select one: a. When given a choice between radioactive and nonradioactive isotopes of the same atom, living cells are more likely to incorporate the radioactive isotopes into their structures b. the nuclei of radioactive isotopes are unusually stable, but the atoms tend to lose electrons c. radioactive elements are natural and therefore not harmful d. the energy emitted by radioactive isotopes can break chemical bonds and cause molecular damage in cells Question 9 Correct1.00 points out of 1.00 Flag question Question text The body uses atoms in different ways to accomplish different tasks. For example, one portion of the body's calcium supply strengthens bones, whereas another portion combines with proteins to stimulate blood clotting after tissue injury. Which of the statements that follow provides the most logical chemical explanation of calcium's ability to perform such different functions? Select one: a. the calcium in blood is a more reactive form of the atom and therefore has fewer protons than the calcium in bone b. the bone contains calcium salts, which are less reactive than the calcium ions found in the blood c. there are many different isotopes of calcium, and the most reactive isotope is found in the bone d. the calcium in blood has a lighter atomic mass than the calcium in bone and is in a more reactive form Question 10 Correct 1.00 points out of 1.00 Flag question Question text A hydrogen atom has one electron. How many covalent bonds can hydrogen form? Select