Description : Open circulatory system is the one in which blood does not circulate only inside blood vessels but it also falls in cavities that irrigate tissues. In the open circulatory system ... and protochordates have open circulatory system. The Circulatory System - Image Diversity: open circulatory system
Last Answer : What is a closed circulatory system?
Description : During a slow decompression, passengers will occur: a. The cabin temperature will fall as pressure reduces b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in ... will operate d. No contra effects, as slow decompression has no effect on the human body
Last Answer : b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in venting
Description : A closed circulatory system is one in which blood circulates only inside blood vessels. For this reason the blood pressure is higher in animals with closed circulatory system. The ... annelids, cephalopod molluscs and vertebrates. The Circulatory System - Image Diversity: closed circulatory system
Last Answer : What are the advantages of the closed circulatory system over the open circulatory system?
Description : The closed circulatory system is more efficient. Since blood circulates only inside blood vessels it can do it with more pressure reaching farther distances between the organs where hematosis ... exchange independently from the circulation) are generally slower and have a low metabolic rate.
Last Answer : What is the difference between octopuses and mussels regarding their circulatory systems?
Description : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is caused by deposits of calcium, fat, chalestero
Last Answer : Assertion`:` Atherosclerosis affects the vessels that supply blood to the heart muscle. Reason`:` It is ... D. If both Assertion & Reason are false.
Description : Assertion` :` Cardiac output is the volume of blood pumped out by each ventricle per minute. Reason `:` Ther cardiac output of an athlete will be much
Last Answer : Assertion` :` Cardiac output is the volume of blood pumped out by each ventricle per minute. Reason `: ... . D. If both Assertion & Reason are false.
Description : Assertion : Epithelium cells get their nutrientes from Adjacent cells . Reason : In epithelium tissue large intercellular spaces are present
Last Answer : Assertion : Epithelium cells get their nutrientes from Adjacent cells . Reason : In epithelium tissue ... . If both Assertion & Reason are false.
Description : Do fishes present an open or closed circulatory system? How many chambers does a fish heart have? How does blood flow throughout the fish body?
Last Answer : As in every vertebrate the circulatory system of fishes is closed, i.e., blood flows only within blood vessels. The fish heart has only two consecutive chambers: a thin-walled atrium and a ... the venous blood towards the gills to be again oxygenated. Fish Facts - Image Diversity: fish heart
Description : Assertion : - Circulatory system of cockroach does not contain any capillary. Reason :- Blood of cockroach does not contain any respiratory pigment.
Last Answer : Assertion : - Circulatory system of cockroach does not contain any capillary. Reason :- Blood of cockroach does not contain ... . A. A B. B C. C D. D
Description : Circulation is the movement of substances like nutrients and gases within blood vessels and cavities throughout the organism.
Last Answer : Do all animals have a circulatory system?
Description : Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following. (a) Tyloses in vessels (b) Closure of stomata (c) Flaccidity of bulliform cells (d) Shrinkage of air spaces in spongy mesophyll
Last Answer : (c) Flaccidity of bulliform cells
Description : List the three kinds of blood vessels of human circulatory system and write ¦ their functions in tabular form. -Biology
Last Answer : Three types of blood vessels in human circulatory system are: Arteries, Veins and Capillaries. Their functions are tabulated below:
Description : Assertion `:-` ADH prevents diuresis. Reason `:-` ADH also affect the kidney function by its constrictory effects on blood vessels.
Last Answer : Assertion `:-` ADH prevents diuresis. Reason `:-` ADH also affect the kidney function by its ... . D. If both Assertion & Reason are false.
Description : Assertion `:` Prothrombinase enzyme act as antiheparin Reason `:` Heparin prevent coagulation of blood in Blood vessels
Last Answer : Assertion `:` Prothrombinase enzyme act as antiheparin Reason `:` Heparin prevent coagulation of blood in ... D. If both Assertion & Reason are false.
Description : Assertion `:-` Platelets repair dammaged endothelium of blood vessels. Reason `:` Platelets secrete serotonin which is a vaso constrictor
Last Answer : Assertion `:-` Platelets repair dammaged endothelium of blood vessels. Reason `:` Platelets secrete ... . If both Assertion & Reason are false.
Description : Assertion : The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood vessels . Reason : Rapid fall in the level o
Last Answer : Assertion : The menstrual flow results due to breakdown of endometrial lining of the uterus and its blood ... D. If both Assertion & Reason are False.
Description : Which of the following statements is/are true regarding requirements for receptacle outlets aboard vessels? A. Each receptacle outlet operating at 100 volts or more must have a grounding pole. B. Outlets ... machinery with a portable light having a 50 foot flexible cord. D. All of the above.
Last Answer : Answer: A
Description : Not all animals have a circulatory system. Poriferans, cnidarians, platyhelminthes and nematodes (in these there are the pseudocoelom fluid but no vessels) are avascular animals. Echinoderms do not have true circulatory systems either.
Last Answer : What is the alternative means for transport of substances in animals without a circulatory system? Why is blood important for larger animals?
Description : When right ventricle of human heart contract then blood pumped into `:-`
Last Answer : When right ventricle of human heart contract then blood pumped into `:-` A. All parts of body B. Lungs C. Pulmonary veins D. Systemic aorta
Description : In the more highly developed animals, such as humans this gas is used to regulate the activity of the heart, the blood vessels, and the respiratory system. WORKING MUSCLES PRODUCE A ... mental disturbances which can include confusion, headache, low blood pressure and hypothermia. Name this gas.
Last Answer : ANSWER: Carbon Dioxide or CO2
Description : Coast Guard Regulations (46 CFR) require manual contactors for operating the general emergency alarm on tank vessels to be located in the navigating bridge, engine room and the ____________. A ... C. crew accommodations and sleeping spaces D. engineering officers' quarters furthest from the bridge
Description : Which of the following terms indicates the amount of blood pumped out of the ventricle with each contraction of the heart? a) Stroke volume Stroke volume is the amount of blood pumped out ( ... d) Preload Preload is the pressure created by a volume of blood within a ventricle before contraction.
Last Answer : a) Stroke volume Stroke volume is the amount of blood pumped out (ejected) with each contraction of the heart (heart beat). Stroke volume times heart rate equals cardiac output.
Description : Which of the following terms describes the amount of blood ejected per heartbeat? a) Stroke volume Stroke volume is determined by preload, afterload, and contractility. b) Cardiac output Cardiac output ... must overcome to eject blood during systole and is one of the determinants of stroke volume.
Last Answer : a) Stroke volume Stroke volume is determined by preload, afterload, and contractility.
Description : Histamine exerts the following actions except: A. Dilatation of large blood vessels B. Dilatation of small blood vessels C. Stimulation of isolated guineapig heart D. Itching
Last Answer : A. Dilatation of large blood vessels
Description : Assertion A: Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R: No wave can have a height greater than the depth of water through which it passes Select your answer based on ... of A (C) A is true but R is false (D) A is false but R is true
Last Answer : (A) Both A and R is true and R is correct explanation of A
Description : Throgh which are water and mineral in plant are transported?
Last Answer : Xylem
Description : If in a motion, the axis of the rotation passes through an object, then the motion is called. (1) Orbital motion (2) Circulatory motion (3) Spin motion (4) Oscillatory motion
Last Answer : (3) Spin motion Explanation: A rotation is a circular movement of an object around a center (or point) of rotation A threedimensional object al ways rotates around an imaginary line called a rotation axis.
Description : In humans, blood passes from the post caval to the diastolic right atrium of heart due to (a) stimulation of the sino auricular node (b) pressure difference between the post caval and atrium (c) pushing open of the venous valves (d) suction pull.
Last Answer : (b) pressure difference between the post caval and atrium
Description : What is the main reason that vaqueros no longer needed to ride the wide open spaces after the civil war?
Last Answer : Railroads were used to transport Cattells to market in Eastern in a western cities.
Description : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` The tricuspid and bicuspid valves are open and semilun
Last Answer : Assertion `:` In joint diastole, all the four chamber of heart are in relaxed state. Reason `:` ... False. D. If both Assertion & Reason are false.
Description : What is the name of system responsible for transporting and delivering materials needed by the body's organs such as oxygen nutrients and hormones through the blood as it is pumped around the body by?
Last Answer : What is the answer ?
Description : Which blood vessels carry oxygen-rich blood from the heart to the rest of the body?
Last Answer : The large artery connected to the heart, called the Aorta.
Description : Which of the following blood vessels carry blood from the human body to the heart? A. Veins B. Arteries C. Capillaries D. None of these
Last Answer : ANSWER: A
Description : Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation ... (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades
Last Answer : (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades
Description : The cardiac reserve is: A A. ability of the heart to respond to circulatory demands over and above those of the animal/ human at rest B. ability of the heart to respond to circulatory demands to ... / human at rest C. Is the blood that is present in the peripheral circulatory D. None of these
Last Answer : ability of the heart to respond to circulatory demands over and above those of the animal/ human at rest
Description : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. Reason `:-` ANF can cause vasodilation and decrease the B
Last Answer : Assertion `:-` An increase in blood flow to the atria of heart can cause the release of ANF. ... False. D. If both Assertion & Reason are false.
Description : Which body system coordinates activities of body parts by releasing hormones into the blood? A) nervous system B) digestive system C) respiratory system D) circulatory system E) endocrine system
Last Answer : E) endocrine system
Description : Most fish do not sink in water because of the presence of (1) air sinuses (2) buoyant scales on the body (3) swim bladder (4) swimmerets
Last Answer : swim bladder
Description : The steel which contains fissures and cavities, is manufactured by (A) Cementation process (B) Crucible process (C) Bessemer process (D) Open hearth process
Last Answer : Answer: Option A
Description : The following structure is absent is birds B A. Pleura B. Diaphragm C. Pleural cavities D. Large instestine
Last Answer : Diaphragm
Description : Powder metallurgy is used to produce (A) High precision components with complex cavities and sharp features (B) Components of large size (C) Porosity free components (D) Components of such alloys whose constituents do not form alloys readily
Last Answer : (C) Porosity free components
Description : Fire refining process is employed in case of (A) Tin (B) Copper (C) Zinc (D) Aluminium
Last Answer : (B) Copper
Description : Arteries are best defined as the vessels which (a) supply oxygenated blood to the different organs (b) carry blood away from the heart to different organs (c) break up into capillaries which reunite to form a vein (d) carry blood from one visceral organ to another visceral organ
Last Answer : (b) carry blood away from the heart to different organs
Description : The circulatory systems can be classified into open circulatory system and closed circulatory system.
Last Answer : What is an open circulatory system?