Biology Questions
The best high school and college tutors are just a click away, 24×7! Pick a subject, ask a question, and get a detailed, handwritten solution personalized for you in minutes. We cover Math, Physics, Chemistry & Biology.
![Listen Match the terms with the appropriate classes Cestoda Monogenea Trematoda Turbellaria 1 Endoparasitic 2 Free living and commensal 3 Ectoparasitic](https://media.kunduz.com/media/sug-question-candidate/20240212140541678527-4426144.jpg?w=256)
Biology
Animal KingdomListen Match the terms with the appropriate classes Cestoda Monogenea Trematoda Turbellaria 1 Endoparasitic 2 Free living and commensal 3 Ectoparasitic
![Indicat Choose production of egg sex cells mitosis formation of a scar meiosis prokariota cell division Choose osis is responsible for the type of cell division](https://media.kunduz.com/media/sug-question-candidate/20240212111222044794-6167964.jpg?w=256)
Biology
The Living WorldIndicat Choose production of egg sex cells mitosis formation of a scar meiosis prokariota cell division Choose osis is responsible for the type of cell division
![The part of the neuron that receives nerve impulses is Select one a node of Ranvier O b dendrite c axon d Nissl body](https://media.kunduz.com/media/sug-question-candidate/20240212111155232709-6167964.jpg?w=256)
Biology
Human Physiology - Neural Control & CoordinationThe part of the neuron that receives nerve impulses is Select one a node of Ranvier O b dendrite c axon d Nissl body
![Prokaryote Choose Eukaryotes DNA circular usually DNA linear molecules chromosomes with histone proteins DNA squere usually](https://media.kunduz.com/media/sug-question-candidate/20240212111139791121-6167964.jpg?w=256)
Biology
BiomoleculesProkaryote Choose Eukaryotes DNA circular usually DNA linear molecules chromosomes with histone proteins DNA squere usually
![What is the name of the process by which en early embryo attaches to the uterine wall Select one O a gastrulation b ovulation O c implantation d fertilisation](https://media.kunduz.com/media/sug-question-candidate/20240212111125145470-6167964.jpg?w=256)
Biology
The Living WorldWhat is the name of the process by which en early embryo attaches to the uterine wall Select one O a gastrulation b ovulation O c implantation d fertilisation
![Which one of the following things is NOT performed by proteins Select one O a defend against microorganisms b hormonal function c transport of substances O d catalysis e storage of genetic information](https://media.kunduz.com/media/sug-question-candidate/20240212111104553476-6167964.jpg?w=256)
Biology
Biotechnology & its ApplicationsWhich one of the following things is NOT performed by proteins Select one O a defend against microorganisms b hormonal function c transport of substances O d catalysis e storage of genetic information
![Which type of muscles has multinucleated fibers or cells Select one O a oblique muscles b smooth muscles O c skeletal muscles d cardiac muscles](https://media.kunduz.com/media/sug-question-candidate/20240212110949251174-6167964.jpg?w=256)
Biology
The Living WorldWhich type of muscles has multinucleated fibers or cells Select one O a oblique muscles b smooth muscles O c skeletal muscles d cardiac muscles
![Which structure is NOT a supramolecular complex Select one a ribosome b mitochondrion Oc chromosome O d plasma membrane](https://media.kunduz.com/media/sug-question-candidate/20240212110810987161-6167964.jpg?w=256)
Biology
BiomoleculesWhich structure is NOT a supramolecular complex Select one a ribosome b mitochondrion Oc chromosome O d plasma membrane
![Prokaryotes Choose Eukaryotes Choose Choose the RNA synthesis inside the nucleus protein synthesis in cytoplasm RNA synthesis in cytoplasm protein synthesis inside the nucleus RNA and protein synthesis coupled in cytoplasm 1](https://media.kunduz.com/media/sug-question-candidate/20240212110132046712-6167964.jpg?w=256)
Biology
Cell: The Unit of LifeProkaryotes Choose Eukaryotes Choose Choose the RNA synthesis inside the nucleus protein synthesis in cytoplasm RNA synthesis in cytoplasm protein synthesis inside the nucleus RNA and protein synthesis coupled in cytoplasm 1
![Each ovarian folicle in the cortex of the ovary is surrounded and supported by the Select one a muscle tissue b tunica albuginea c connective tissue d cytoskeleton structure](https://media.kunduz.com/media/sug-question-candidate/20240212110938260829-6167964.jpg?w=256)
Biology
The Living WorldEach ovarian folicle in the cortex of the ovary is surrounded and supported by the Select one a muscle tissue b tunica albuginea c connective tissue d cytoskeleton structure
![Which of the following proteins is abundant in the extracellular matrix Select one a keratin b tubulin c actin d elastin](https://media.kunduz.com/media/sug-question-candidate/20240212110721131666-6167964.jpg?w=256)
Biology
The Living WorldWhich of the following proteins is abundant in the extracellular matrix Select one a keratin b tubulin c actin d elastin
![Which of these is not a function of lipids Select one a long term energy storage b hormonal function c catalysis d insulation](https://media.kunduz.com/media/sug-question-candidate/20240212110648739147-6167964.jpg?w=256)
Biology
BiomoleculesWhich of these is not a function of lipids Select one a long term energy storage b hormonal function c catalysis d insulation
![What is the energy carrier in the ATP molecule Select one a sugar b bond between phosphate and sugar c phosphate bonds d adenine](https://media.kunduz.com/media/sug-question-candidate/20240212110627949090-6167964.jpg?w=256)
Biology
BiomoleculesWhat is the energy carrier in the ATP molecule Select one a sugar b bond between phosphate and sugar c phosphate bonds d adenine
![Production of the cerebrospinal fluid is the function of ependymal cells True False Select one True False](https://media.kunduz.com/media/sug-question-candidate/20240212110613071439-6167964.jpg?w=256)
Biology
The Living WorldProduction of the cerebrospinal fluid is the function of ependymal cells True False Select one True False
![distinguish beta thalassemia min from alpha thalassemia iron deficiency anemia and hemoglobinopathies is Question 45 Answer Heinz body stain b HbA2 level C serum iron d globin solubility](https://media.kunduz.com/media/sug-question-candidate/20240212073357455043-6504418.jpg?w=256)
Biology
Human Health and Diseasesdistinguish beta thalassemia min from alpha thalassemia iron deficiency anemia and hemoglobinopathies is Question 45 Answer Heinz body stain b HbA2 level C serum iron d globin solubility
![about hereditary spherocytosis is true Question 40 Answer a Cells have an increased mean cell hemoglobin concentration MCHC b Membrane loss and red cell trapping occur in the Hepatic microcirculation C Red cell osmotic fragility is decreased d Abnormally shaped cells are produced in the bone marrow](https://media.kunduz.com/media/sug-question-candidate/20240212073321807600-6504418.jpg?w=256)
Biology
Human Physiology - Generalabout hereditary spherocytosis is true Question 40 Answer a Cells have an increased mean cell hemoglobin concentration MCHC b Membrane loss and red cell trapping occur in the Hepatic microcirculation C Red cell osmotic fragility is decreased d Abnormally shaped cells are produced in the bone marrow
![Question 42 Answer a Renal hormone that regulates marrow red cell production b Hormone produced by the liver that stimulates megakaryopoiesis C Marrow hormone secreted by developing megakaryoblasts d Pituitary hormone that controls](https://media.kunduz.com/media/sug-question-candidate/20240212073255963161-6504418.jpg?w=256)
Biology
Human Health and DiseasesQuestion 42 Answer a Renal hormone that regulates marrow red cell production b Hormone produced by the liver that stimulates megakaryopoiesis C Marrow hormone secreted by developing megakaryoblasts d Pituitary hormone that controls
![important component of distinguishing science from pseudoscience is being able to distinguish that information is from a credit urce Select all of the following that are considered to be credible sources Peer reviewed academic journals University sponsored website that includes references from peer reviewed journal articles Social media posts that reference blog posts Your college textbook copyright 2019 Social media posts with no reference An academic journal s website featuring its published articles A blog from a website that is recommending that you purchase a product from them An opinion article in a popular newspaper](https://media.kunduz.com/media/sug-question-candidate/20240212071406452674-6527671.jpg?w=256)
Biology
The Living Worldimportant component of distinguishing science from pseudoscience is being able to distinguish that information is from a credit urce Select all of the following that are considered to be credible sources Peer reviewed academic journals University sponsored website that includes references from peer reviewed journal articles Social media posts that reference blog posts Your college textbook copyright 2019 Social media posts with no reference An academic journal s website featuring its published articles A blog from a website that is recommending that you purchase a product from them An opinion article in a popular newspaper
![normal compensating mechanism in which of the following conditions Question 14 Answer a Heavy smoking b Cardiovascular disease C Renal tumors d Pulmonary disease](https://media.kunduz.com/media/sug-question-candidate/20240212065949968624-6504425.jpg?w=256)
Biology
Human Physiology - Generalnormal compensating mechanism in which of the following conditions Question 14 Answer a Heavy smoking b Cardiovascular disease C Renal tumors d Pulmonary disease
![of nonmegaloblastic than megaloblastic anemia Question 6 Answer a Round macrocytes b Howell Jolly bodies C Oval macrocytes](https://media.kunduz.com/media/sug-question-candidate/20240212064408532950-6504425.jpg?w=256)
Biology
Human Health and Diseasesof nonmegaloblastic than megaloblastic anemia Question 6 Answer a Round macrocytes b Howell Jolly bodies C Oval macrocytes
![with a globin chain mutation that alters hemoglobin Question 3 Answer a oxygen binding b function C stability d solubility](https://media.kunduz.com/media/sug-question-candidate/20240212064326733689-6504425.jpg?w=256)
Biology
Molecular Basis of Inheritancewith a globin chain mutation that alters hemoglobin Question 3 Answer a oxygen binding b function C stability d solubility
![Question 4 Answer a case Impaired release of storage iron because of increased hepcidin levels b Increased erythropoietin response by committed red cell progenitor cells C Damaged bone marrow stem cells d Immune destruction caused by red](https://media.kunduz.com/media/sug-question-candidate/20240212064305157573-6504425.jpg?w=256)
Biology
Human Physiology - GeneralQuestion 4 Answer a case Impaired release of storage iron because of increased hepcidin levels b Increased erythropoietin response by committed red cell progenitor cells C Damaged bone marrow stem cells d Immune destruction caused by red
![Paragraph about result explanation trend of Figure 1 and Figure 2 1 2 about gel image Figure 1 1 2 sentences about standard curve Figure 2 2000 bp 1500 bp 1000 bp 700 bp 500 bp 400 bp 300 bp 200 bp 75 bp DNA Ladder GMO GMO Food sample GMO GMO Food sample](https://media.kunduz.com/media/sug-question-candidate/20240212024353791008-4426144.jpg?w=256)
Biology
Principles of Inheritance & Variation (Genetics)Paragraph about result explanation trend of Figure 1 and Figure 2 1 2 about gel image Figure 1 1 2 sentences about standard curve Figure 2 2000 bp 1500 bp 1000 bp 700 bp 500 bp 400 bp 300 bp 200 bp 75 bp DNA Ladder GMO GMO Food sample GMO GMO Food sample
![Predict if the lipid below will give a positive result to the tests below Then indicate the portion or the structure that contributes to the positive result for its corresponding test CH O C CH2 16CH3 CH O C CH2 CH CHCH CH CH CH2 CH3 0 CH CH N CH3 3 CH2 O Test A Liebermann Burchard Test B Test for Phosphate O Yes or No Test D Molisch Test E Kraut s Test Yes or No](https://media.kunduz.com/media/sug-question-candidate/20240211184437798446-6589294.jpg?w=256)
Biology
Ecology - GeneralPredict if the lipid below will give a positive result to the tests below Then indicate the portion or the structure that contributes to the positive result for its corresponding test CH O C CH2 16CH3 CH O C CH2 CH CHCH CH CH CH2 CH3 0 CH CH N CH3 3 CH2 O Test A Liebermann Burchard Test B Test for Phosphate O Yes or No Test D Molisch Test E Kraut s Test Yes or No
![The Burgess Shale preserves fossil organisms from which type of environment O floodplain O seafloor O beach](https://media.kunduz.com/media/sug-question-candidate/20240211201529913972-4116583.jpg?w=256)
Biology
EvolutionThe Burgess Shale preserves fossil organisms from which type of environment O floodplain O seafloor O beach
![The Cambrian explosion occurred during the early mid Cambrian late Archean late Paleozoic](https://media.kunduz.com/media/sug-question-candidate/20240211192714130511-4116583.jpg?w=256)
Biology
The Living WorldThe Cambrian explosion occurred during the early mid Cambrian late Archean late Paleozoic
![Which choice best describes the Cambrian explosion oxygenation of the earth s atmosphere diversification of Ediacaran organisms a burst of Metazoan diversity Odiversification of microbial diversity in the Archean](https://media.kunduz.com/media/sug-question-candidate/20240211192728263165-4116583.jpg?w=256)
Biology
EvolutionWhich choice best describes the Cambrian explosion oxygenation of the earth s atmosphere diversification of Ediacaran organisms a burst of Metazoan diversity Odiversification of microbial diversity in the Archean
![The Burgess Shale preserves fossil organisms from which type of environment Oseafloor O floodplain lakebed O beach](https://media.kunduz.com/media/sug-question-candidate/20240211075156747830-4116583.jpg?w=256)
Biology
Ecology - EcosystemsThe Burgess Shale preserves fossil organisms from which type of environment Oseafloor O floodplain lakebed O beach
![The Cambrian explosion resulted in many different metazoan body plans These groups all still have living members True O False](https://media.kunduz.com/media/sug-question-candidate/20240211075230207757-4116583.jpg?w=256)
Biology
Ecology - EcosystemsThe Cambrian explosion resulted in many different metazoan body plans These groups all still have living members True O False
![The Cambrian explosion is best known from the Burgess Shale a fossil locality in O Minnesota USA O Warrawoona Australia O Yucatan Mexico British Columbia](https://media.kunduz.com/media/sug-question-candidate/20240211075142304780-4116583.jpg?w=256)
Biology
Ecology - GeneralThe Cambrian explosion is best known from the Burgess Shale a fossil locality in O Minnesota USA O Warrawoona Australia O Yucatan Mexico British Columbia
![Describe two reasons why the fossils from the Burgess Shale are so well preserved Why isn t this type of preservation common](https://media.kunduz.com/media/sug-question-candidate/20240211075216206872-4116583.jpg?w=256)
Biology
Animal KingdomDescribe two reasons why the fossils from the Burgess Shale are so well preserved Why isn t this type of preservation common
![S The scientific method II Complete each of the following statements to describe the parts of the scientific method Then place the sentences in the correct order in which the scientific method tends to flow 1 The scientific method begins with a or an Click to select of a natural event 2 Scientists use reasoning to combine observations into a tentative explanation or Click to select 3 Scientists develop a good experimental design that contains both a test group in which the experimental variable is altered and Click to select group in which the experimental variable is not altered a 4 Analysis of the data reveals how the manipulated variable also known as the Click to select variable affects the measured variable the Click to select variable 5 The results of an experiment are called data and must be properly analyzed in order for a Click to select to be reached](https://media.kunduz.com/media/sug-question-candidate/20240211072318597237-6527671.jpg?w=256)
Biology
The Living WorldS The scientific method II Complete each of the following statements to describe the parts of the scientific method Then place the sentences in the correct order in which the scientific method tends to flow 1 The scientific method begins with a or an Click to select of a natural event 2 Scientists use reasoning to combine observations into a tentative explanation or Click to select 3 Scientists develop a good experimental design that contains both a test group in which the experimental variable is altered and Click to select group in which the experimental variable is not altered a 4 Analysis of the data reveals how the manipulated variable also known as the Click to select variable affects the measured variable the Click to select variable 5 The results of an experiment are called data and must be properly analyzed in order for a Click to select to be reached
![ces Which one of the four recorded motor unit action potentials MUAPs corresponds to the smallest number of muscle fibers contracting 1 2 Multiple Choice O O 3 4](https://media.kunduz.com/media/sug-question-candidate/20240211055701213167-4144409.jpg?w=256)
Biology
Biomoleculesces Which one of the four recorded motor unit action potentials MUAPs corresponds to the smallest number of muscle fibers contracting 1 2 Multiple Choice O O 3 4
![Where is the black electrode placed in the electromyograph EMG lab Multiple Choice O O O lateral wrist over the bicep medial wrist anterior elbow](https://media.kunduz.com/media/sug-question-candidate/20240211055540189348-4144409.jpg?w=256)
Biology
Human Physiology - Neural Control & CoordinationWhere is the black electrode placed in the electromyograph EMG lab Multiple Choice O O O lateral wrist over the bicep medial wrist anterior elbow
![ces When sodium flows through open voltage gated channels the membrane Multiple Choice O hyperpolarizes repolarizes reaches resting potential](https://media.kunduz.com/media/sug-question-candidate/20240211055446374381-4144409.jpg?w=256)
Biology
Human Physiology - Chemical Coordinationces When sodium flows through open voltage gated channels the membrane Multiple Choice O hyperpolarizes repolarizes reaches resting potential
![Complete the following paragraph 1 Skeletal muscles are composed of many individual cells or Click to select Click to select 2 The motor neuron and all the myofibers it innervates is referred to as a Click to select sends a nerve impulse to a skeletal muscle fiber the muscle fiber will Click to select 3 The number of motor units activated determines how much Click to select number of motor units activated the Click to select Click to select sensory neuron more motor neuron be stimulated to contract muscle fibers motor unit force greater the force lesser the force relax 4 Each muscle fiber is innervated by a Every time a motor neuron is generated by the muscle The greater the Therefore lifting a heavy object would require motor units than lifting a light object would require](https://media.kunduz.com/media/sug-question-candidate/20240211040207879389-4144409.jpg?w=256)
Biology
Human Physiology - Locomotion & MovementComplete the following paragraph 1 Skeletal muscles are composed of many individual cells or Click to select Click to select 2 The motor neuron and all the myofibers it innervates is referred to as a Click to select sends a nerve impulse to a skeletal muscle fiber the muscle fiber will Click to select 3 The number of motor units activated determines how much Click to select number of motor units activated the Click to select Click to select sensory neuron more motor neuron be stimulated to contract muscle fibers motor unit force greater the force lesser the force relax 4 Each muscle fiber is innervated by a Every time a motor neuron is generated by the muscle The greater the Therefore lifting a heavy object would require motor units than lifting a light object would require
![ces When measuring force by looking at the blue plot in the EMG lab simulator each square corresponds to Multiple Choice 2 kg 5 kg 10 kg 1 ka](https://media.kunduz.com/media/sug-question-candidate/20240211041105578023-4144409.jpg?w=256)
Biology
Animal Kingdomces When measuring force by looking at the blue plot in the EMG lab simulator each square corresponds to Multiple Choice 2 kg 5 kg 10 kg 1 ka
![To make a muscle contract more strongly the nervous system can activate more motor units This process is cal Multiple Choice summation twitch motor unit recruitment incomplete tetanus](https://media.kunduz.com/media/sug-question-candidate/20240211041320093634-4144409.jpg?w=256)
Biology
Human Physiology - Locomotion & MovementTo make a muscle contract more strongly the nervous system can activate more motor units This process is cal Multiple Choice summation twitch motor unit recruitment incomplete tetanus
![While the presence of calcium ions inside the sarcoplasm is necessary for contraction it is not sufficient Once calcium has been released and enables actin myosin crossbridges to form is needed for the muscle contraction Multiple Choice ATP another action potential acetylcholine sodium](https://media.kunduz.com/media/sug-question-candidate/20240211041229494670-4144409.jpg?w=256)
Biology
Human Physiology - Locomotion & MovementWhile the presence of calcium ions inside the sarcoplasm is necessary for contraction it is not sufficient Once calcium has been released and enables actin myosin crossbridges to form is needed for the muscle contraction Multiple Choice ATP another action potential acetylcholine sodium
![A motor unit is composed of Multiple Choice several motor neurons and several muscle fibers one motor neuron and one whole muscle one motor neuron and all of the muscle fibers is innervates](https://media.kunduz.com/media/sug-question-candidate/20240211041257372524-4144409.jpg?w=256)
Biology
The Living WorldA motor unit is composed of Multiple Choice several motor neurons and several muscle fibers one motor neuron and one whole muscle one motor neuron and all of the muscle fibers is innervates
![Which of the following is are needed for skeletal muscle contraction check all that apply Check All That Apply ATP hydrogen calcium water](https://media.kunduz.com/media/sug-question-candidate/20240211035107180479-4144409.jpg?w=256)
Biology
Human Physiology - Locomotion & MovementWhich of the following is are needed for skeletal muscle contraction check all that apply Check All That Apply ATP hydrogen calcium water
![In an electromyography EMG read out all motor units can look slightly different because Select all that apply Check All That Apply every muscle has a varying number of motor units so they can generate different frequencies each motor unit can generate a different amount of recruitment every muscle has one motor unit so they have slightly different frequencies each motor unit can innervate a different number of muscle fibers](https://media.kunduz.com/media/sug-question-candidate/20240211041143397284-4144409.jpg?w=256)
Biology
Human Physiology - Locomotion & MovementIn an electromyography EMG read out all motor units can look slightly different because Select all that apply Check All That Apply every muscle has a varying number of motor units so they can generate different frequencies each motor unit can generate a different amount of recruitment every muscle has one motor unit so they have slightly different frequencies each motor unit can innervate a different number of muscle fibers
![Which if the following statements are true Select all that apply Check All That Apply Electromyography measures the number of motor units active in a muscle Electromyography measures the frequency of muscle fibers in a muscle Electromyography is a recording of the voltage produced by the skeletal muscle contractions Electromyography is a measurement of all motor units in a muscle](https://media.kunduz.com/media/sug-question-candidate/20240211041159294080-4144409.jpg?w=256)
Biology
The Living WorldWhich if the following statements are true Select all that apply Check All That Apply Electromyography measures the number of motor units active in a muscle Electromyography measures the frequency of muscle fibers in a muscle Electromyography is a recording of the voltage produced by the skeletal muscle contractions Electromyography is a measurement of all motor units in a muscle
![Different motor units generate the same potentials in an EMG readout True or False True False](https://media.kunduz.com/media/sug-question-candidate/20240211040323035480-4144409.jpg?w=256)
Biology
The Living WorldDifferent motor units generate the same potentials in an EMG readout True or False True False
![Multiple Choice O O lower higher lower less more higher more lower](https://media.kunduz.com/media/sug-question-candidate/20240211040302155754-4144409.jpg?w=256)
![Each motor unit action potential MUAP recorded in an EMG signal corresponds to Multiple Choice O O the action potential of each individual muscle fiber innervated by the same motor neuron the sum of all the motor units in a single muscle the sum of the electrical potentials from all the muscle fibers of a motor unit](https://media.kunduz.com/media/sug-question-candidate/20240211035938676723-4144409.jpg?w=256)
Biology
The Living WorldEach motor unit action potential MUAP recorded in an EMG signal corresponds to Multiple Choice O O the action potential of each individual muscle fiber innervated by the same motor neuron the sum of all the motor units in a single muscle the sum of the electrical potentials from all the muscle fibers of a motor unit
![Which type of motor units are activated for the longest time during low to moderate level exercise Multiple Choice O O O slow oxidative fast glycolytic fast oxidative](https://media.kunduz.com/media/sug-question-candidate/20240211035637899279-4144409.jpg?w=256)
Biology
The Living WorldWhich type of motor units are activated for the longest time during low to moderate level exercise Multiple Choice O O O slow oxidative fast glycolytic fast oxidative
![All the fibers in one muscle that a simple motor neuron innervates makes up a n Multiple Choice O motor unit synapse sarcomere nerve junction](https://media.kunduz.com/media/sug-question-candidate/20240211035442839285-4144409.jpg?w=256)
Biology
The Living WorldAll the fibers in one muscle that a simple motor neuron innervates makes up a n Multiple Choice O motor unit synapse sarcomere nerve junction
![All major metazoan groups that appeared during the Cambrian explosion still have living members O True O False](https://media.kunduz.com/media/sug-question-candidate/20240210191842771459-4116583.jpg?w=256)
Biology
Animal KingdomAll major metazoan groups that appeared during the Cambrian explosion still have living members O True O False
![Match the eating strategy with the correct description filter feeder predator detritivore Choose eating food particles from the seafloom processing water for particles of food eating another metazoan Choose](https://media.kunduz.com/media/sug-question-candidate/20240210191828514013-4116583.jpg?w=256)
Biology
Ecology - GeneralMatch the eating strategy with the correct description filter feeder predator detritivore Choose eating food particles from the seafloom processing water for particles of food eating another metazoan Choose