Archives: Quiz

1) a polysaccharide is a polymer made up of which kind of monomers? a. simple sugars b. amino acids c. nucleotides d. alternating sugar and phosphate groups e. fatty acids and glycerol 2) what is the path of an excreted […]

1) which component in an operon is incorrectly matched with its function? a. promoterwhere rna polymerase first binds to dna b. regulator genebinds to the repressor protein c. structural genemakes mrna by transcription d. operatorif not bound to repressor, allows […]

1) which of the following stages occurs immediately after the development of the zygote? a. the development of the proembryo. b. the development of globular stage. c. the torpedo stage embryo forms. d. the heart stage when the cotyledon develops. […]

1) a 10% glucose solution is placed in the thistle tube. the thistle tube is placed in a beaker that contains a 5% glucose solution. where is the highest concentration of water found? a. in the 10% solution b. in […]

1) the temperature is nearly uniform throughout a lake a. during winter when the ice forms an insulating cover. b. during summer when the sunlight warms the surface and the wind mixes the layers. c. by the end of the […]

1) an abandoned indiana coal mine spoil bank contains chunks of pyrite minerals. under constant erosion and weathering, the pyrites leech large amounts of sulfuric acid (h2so4). the spoil banks are also mixed with large quantities of basic limestone and […]

1) which of the following would result in reproductive isolation? a. two populations of crickets are indistinguishable in physical features, but the females in each group only come to the different songs of their males. b. fruit flies on one […]

1) all of the following structures are part of the male reproductive system except a. testes. b. epididymis. c. penis. d. fimbriae. e. prostate. 2) imagine a person has a genetic disorder that prevents them from producing the protein collagen, […]

1) choose the correct order of classification from most inclusive to exclusive. a. domain-kingdom-phylum-class-order-family-genus-species b. kingdom-domain-class-phylum-order-family-genus-species c. kingdom-domain-class-phylum-order-genus-species-family d. kingdom-class-phylum-domain-genus-order-family-species 2) which of the following definitions best describes the role of pathogen-associated molecular patterns (pamp’s)? a. pamp’s are molecules on […]

1) which of the following crosses would always result in offspring that only display the dominant phenotype? a. tt x tt b. tt x tt c. tt x tt d. tt x tt e. two of the crosses will always […]

1) what is the major reason why xenotransplantation is not being widely used in medicine today? a. the human patient will often reject the animal organ. b. there are not enough animal organs available for transplant. c. people are not […]

1) what would you find in the heart of an amphibian? a. one atrium and one ventricle b. two atria and one ventricle c. one atrium and two ventricles d. two atria and two ventricles e. two atria and a […]

1) transgenic plant products include all of the following except a. soybeans that are resistant to a common herbicide. b. an antibody produced by soybeans to treat genital herpes. c. suicide genes that cause the plants to self destruct after […]

1) which characteristic of pea plants were important in their selection as mendel’s research organism? a. peas are easy to cultivate. b. pea plants have a short generation time. c. pea plants are self-pollinating but can be cross-fertilized easily. d. […]

1) as lymph passes through the sinuses of lymph nodes, it is filtered by ______ that engulf debris and pathogens. a. t cells b. b cells c. neutrophils d. macrophages 2) homologous structures such as the bones in wings, flippers, […]

1) in gymnosperms and angiosperms, seeds disperse the _________ stage of the life cycle and in mosses and ferns, spores disperse the ___________ stage of the life cycle. a. sporophyte; sporophyte b. gametophye; sporophyte c. sporophyte; gametophyte d. microsporocytes; megasporocytes […]

1) which of the following structures is a stem adaptation instead of a root adaptation? a. stolons b. rhizomes c. tubers d. corms e. all are stem adaptations 2) a person working in a rice paddy in asia becomes infected […]

1) you need to identify a plant, but it is winter and the leaves have fallen to the ground and mixed with leaves from other plants. the parts of flowers, fruits, and seed leaves of germinating seeds are not available […]

1) the germinating corn seed pictured below is displaying a. negative gravitropism. b. positive gravitropism. c. thigmotropism. d. negative phototropism. e. positive phototropism. 2) the frequent change in hiv surface proteins is a type of a. coevolution. b. parasitism. c. […]

1) which piece of evidence supports the hypothesis of continental drift? a. alfred wegener believed that the continents formed a supercontinent called pangea. b. charles darwin believed that the continents formed a supercontinent called pangea. c. charles lyell believed that […]

1) in spite of hundreds of millions of dollars spent on insecticides targeted at pest control for agricultural and medical purposes, man has been unable to drive any to extinction. on the other hand, the extinction of many species of […]

1) which aquatic zone will provide habitat for invertebrates and many small fish? a. littoral zone b. profundal zone c. epipelagic zone d. limnetic zone 2) which of the following tissues forms the outer protective covering of the plant? a. […]

1) which of the following lists correctly traces the path of a sound vibration as it moves through the ear? a. auditory canal-tympanic membrane-malleus-incus-stapes-oval window-cochlea-cochlear nerve b. auditory canal-malleus-incus-stapes-tympanic membrane-oval window-cochlea-cochlear nerve c. auditory canal-tympanic membrane-malleus-incus-stapes-cochlea-oval window-cochlear nerve d. auditory […]

1) what is the scalanaturae? a. a species of horse b. the first theory of evolution c. a sequential ladder of life, with humans at the top d. another name for the theory of special creation 2) in his theory […]

1) saturated fatty acids and unsaturated fatty acids differ in: a. the number of carbon-to-carbon bonds b. the consistency at room temperature c. the number of hydrogen atoms present d. all of the choices are differences between saturated and unsaturated […]

1) single celled eukaryotic cells belong to which of the following domains? a. eukarya b. fungi c. animalia d. plantae 2) in the pine life cycle, a. fertilization occurs shortly after pollination to produce the zygote. b. the gametophyte generation […]

1) the liver functions in digestion by a. converting hemoglobin to bilirubin and biliverdin. b. destroying old red blood cells. c. producing blood proteins. d. producing urea. e. producing bile. 2) lungless salamanders lack lungs and breathe through their skins […]

1) approximately what percentage of the energy in one trophic level is incorporated into the next trophic level? a. 1% b. 10% c. 30% d. 60% e. 100% 2) a typical leaf is composed of multiple layers of specialized cells. […]

1) which of the following statements about the process of hearing is true? a. hearing is not dependent on the inner ear. b. all parts of the organ of corti hear all ranges of sound. c. loud music cannot damage […]

1) the use of a molecular clock may be used to indicate relatedness and evolutionary time a. if nucleic acid changes are neutral and not tied to adaptation. b. if nucleic acid changes occur at a fairly constant rate. c. […]

1) ecologist robert macarthur observed that five species of similar warblers coexisted on spruce trees because they a. ate different kinds of insects. b. cooperated in their foraging habits. c. foraged in different places of the tree canopy. d. were […]

1) if an individual was interested in eating a healthy breakfast that would provide them with energy for the entire day the breakfast should include which of the following foods? a. whole grain cereal with 4 ounces of milk. b. […]

1) where on this phylogenetic tree of primate evolution do you find evolution of the hominines? a. no. 1 b. no. 2 c. no. 3 d. no. 4 e. no. 5 Answer: b 2) which carbohydrate is used in the […]

1) a functional advantage of having human testes in the scrotum rather than in the abdomen is a. lack of room in the abdomen. b. a shorter sperm duct. c. more direct blood supply. d. lower temperature. e. greater protection […]

1) which statement is not true about water uptake in a plant root? a. water enters the root from the soil by osmosis. b. water enters the cytoplasm of the root hairs by active transport. c. water travels by diffusion […]

1) the first eukaryotic cells probably arose about _____ billion years ago. a. 2.2 b. 2.5 c. 3.5 d. 4.5 2) if you are trying to alter the defensive mechanisms of a plant, which component of the signal transduction pathway […]

1) in order for signal transduction to work properly in plants the ______________________. a. correct hormone needs to bind to the appropriate receptor in order to enter the cell b. relay proteins need to amplify the signal and convert it […]

1) among the many functions of wetlands is (are) a. providing food and habitats for fish, waterfowl, and wildlife. b. purifying water by filtering it and breaking down toxic wastes and nutrients. c. absorbing storm and overflow waters. d. all […]

1) a flagellated protist that is sexually transmitted is a. plasmodium. b. giardia. c. entamoeba. d. trichomonas. e. paramecium. 2) which factor led to mendel’s success as a scientist? a. applied mathematics to the field of science b. followed the […]

1) cnidaria and flatworms exchange gases and remove wastes by way of their a. open circulatory systems. b. closed circulatory systems. c. gastrovascular cavities. d. moist skin surfaces. e. respiratory and excretory systems. 2) which of the following organisms will […]

1) when a round fruit plant is crossed with a long fruit plant their offspring are oval. what is the best explanation for this scenario? a. pleiotropic inheritance b. polygenic inheritance c. incomplete dominance d. x-linked inheritance 2) tropical rainforests […]

1) it is estimated that humans have approximately ______ base pairs in our genome. a. 3 billion b. 2.5 million c. 180 million d. 12 trillion 2) which of the following substances have not been identified as a pamp? a. […]

1) match the terms in the word bank with the labeled structures on the diagram. briefly define the function of each structure: axon, nucleus, cell body, dendrite, myelin sheath. 1> b – cell body a. the part of a neuron […]

1) what are the potential consequences if a person’s kidney suddenly stopped secreting the normal hormones? a. the person would have trouble regulating their blood volume and pressure due to the imbalance of salt in the blood stream. b. there […]

1) with negative pressure breathing, the muscles that move the ribs and diaphragm are distant from the absorptive alveolar surfaces. what difficulty(ies) could occur if the muscles were around each alveolus and had to expand each alveolus to suck in […]

1) match the items below with their descriptions: art-based; matching use figures a, b and c to identify the three most common prokaryote shapes. 1> figure b a. spirochetes or spirilla 2> figure a b. cocci 3> figure c c. […]

1) which of the following substrates are required to run cellular respiration? a. glucose & oxygen b. glucose & carbon dioxide c. sunlight & oxygen d. energy & glucose 2) trace the path of an inhaled air molecule in a […]

1) when bone marrow stem cells are removed from the patient, infected with a virus that carries a normal gene, and returned to the patient, this is an example of a. pcr. b. chemotherapy. c. viral disinfection. d. in vivo […]

1) the structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the a. hepatic portal artery. b. hepatic portal vein. c. renal vein. d. none of the choices are correct. […]

1) which of the following endocrine glands does not produce its own hormones, but stores hormones produced by the hypothalamus? a. thyroid b. adrenal cortex c. adrenal medulla d. posterior pituitary e. anterior pituitary 2) what type of fiber accounts […]