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Why Do We Need Air? - Alston Publishing House
Why Do We Need Air? - Alston Publishing House

... exchange of materials between blood and cells Circulatory system A system made up of the heart, blood vessels and blood which works together with the respiratory system to ensure that all the cells in the body receive sufficient oxygen for respiration to occur Diaphragm A layer of muscle just belo ...
CHAPTER 2 - PULMONARY FUNCTION, TRANSPORT OF BLOOD
CHAPTER 2 - PULMONARY FUNCTION, TRANSPORT OF BLOOD

... b) During the hockey match, the player must increase the volume of gas exchanged in the lungs and muscles. Explain the ...
How Animals Survive (Circulation and Gas
How Animals Survive (Circulation and Gas

... The thicker body conformation of animals, necessitate to counter the problem of transporting substances across distances. Not only diffusion, but also pressure and friction play a role in diminishing the efficiency of bulk transport in animals. Different animals, have adapted different mechanisms in ...
Name Pd ______ Ch 8 – Respiratory System Respiratory
Name Pd ______ Ch 8 – Respiratory System Respiratory

... o The only visible part of the respiratory system o During breathing, air enters the nose by passing through the nostrils, or external nares. o The interior of the nose consists of the nasal cavity, divided in a midline nasal septum. o The Olfactory Receptors for the sense of smell are located in th ...
Class Reptiles
Class Reptiles

... archosaurs ( “ruling reptiles”), a group that later included the early crocodiles, the dinosaurs, and the reptiles that evolved into birds. • The Mesozoic era is known as the Age of Reptiles. - During this time reptiles , esp. the dinosaurs, dominated all other forms of life. - Dinosaur means “terri ...
Review Packet 4
Review Packet 4

... 4. __________________________ are small blood vessels with very thin walls that allow for diffusion. 5. __________________________ are blood vessels that carry blood away from the heart. 6. __________________________ are blood vessels that carry blood toward the heart. 7. __________________________ ...
Revision questions
Revision questions

... 3. Where do sponges (Porifera) live? 4. Name four types of cells present in body structure of Porifera. 5. What is the name of protein which forms flexible soft body tissue of sponges? 6. Collar cells in the inner part of sponge have flagella. What are these flagella used for? 7. Sponges can reprodu ...
Exam 1 Q2 Review Sheet
Exam 1 Q2 Review Sheet

... 3. Identify the three properties of a respiratory surface and explain why these three properties are required. 4. Why do cells need a constant supply of molecular oxygen? 5. Where does the CO2 you breathe out come from? 6. Compare and contrast the four methods of gas exchange used by animal phyla. F ...
Slide 1
Slide 1

...  Example: jog ...
Arthropod
Arthropod

... Open system ...
Biology 2
Biology 2

... Vertebrate Lungs • form as outgrowths of pharynx • found in amphibians, reptiles, birds, mammals • note increase in folding/surface area in evolution from amphibians to reptiles to mammals ...
1 - SCBio
1 - SCBio

... For each of the following indicate “T” for true, “F” for false. Transfer all your answers to the True/False grid on the last page of this examination paper. Each question has a value of 1 mark (Suggested time: 15 min.) 1. ____ In plants, the anther contains pollen. 2. ____ A plant with two seed leav ...
Genes and physical fitness
Genes and physical fitness

... than women due to their greater muscle mass, heart size, circulating blood volume and more hemoglobin in the blood in relation to body mass [2]. Factors affecting the maximal oxygen uptake are classified into four groups linked with (i) the respiratory system, (ii) blood circulation, (iii) muscular b ...
TITLE: The Online Heart Activity
TITLE: The Online Heart Activity

... compound containing iron, to which oxygen binds (Oxygen is attracted to iron and when they are together you get rust). There exists a popular misconception that deoxygenated blood is blue and that blood only becomes red when it comes into contact with oxygen. Blood is never blue, but veins appear bl ...
Human body
Human body

... food you didn’t digest. Feces smells because of bacteria that live in the Large Intestine and help us digest our food.  The bacteria give off a nice mixture of foul smelling gasses also known as flatulence (farts)  Diarrhea happens when the intestines are irritated and release the feces before the ...
1 Lungs sheet - WordPress.com
1 Lungs sheet - WordPress.com

... 4. Explain how the cells lining the trachea and bronchus protect the alveoli from damage. 5. Why is it important for mammalian respiratory systems to have such a large surface area? 6. What factors affect the rate of diffusion? Describe how the lungs are adapted to rapid diffusion of gases. 7. The c ...
Life Processes
Life Processes

... 1. Why visible movement is not enough for defining the characteristic of life? A. Plants are not visibly growing and some animals can breath without, visible movement. So using visible movement is not suitable for defining the characteristic of life is not enough. 2. Why molecular movement needed fo ...
Respiration Notes File
Respiration Notes File

... atmospheric pressure in the alveoli falls, which forces air into the airways 2. External intercostals muscles contract, raising ribs and sternum and enlarges the cavity even more 3. Pleural membranes held tightly together, move with the contractions of muscles 4. Surface tension in the alveoli (cau ...
Chapter 5.qxp
Chapter 5.qxp

... main difficulty is that the increase in fitness arising from a beneficial mutation can be very small, making evolutionary change quite slow. One way evolutionary biologists have coped with this problem is to place populations of rapidly reproducing organisms in artificial environments where fitness ...
Popgen_shou_week2
Popgen_shou_week2

... Adaptive evolution: long term evolutionary changes in response to natural selection upon superior genetic variants • Adaptive evolutionary changes in animals have been documented in: - morphology, behaviour, colour, prey size, body size, life history, disease tolerance and resistance, biocide resist ...
O 2 O 2 O 2 O 2 - Cloudfront.net
O 2 O 2 O 2 O 2 - Cloudfront.net

... • blood gets O2 from lungs • drops off CO2 to lungs • brings O2-rich blood from lungs to heart – Circulation to body (systemic) • pumps O2-rich blood to body • picks up nutrients from digestive ...
Body Structure of Mollusks
Body Structure of Mollusks

...  Oxygen and nutrients diffuse into tissues that are bathed in blood and carbon dioxide diffuses from tissues into the blood.  In a ______________________ circulatory system, blood is confined to vessels as it moves through the body.  A closed system ______________________ transports oxygen and nu ...
pages 849–852
pages 849–852

... 9. What is convergent evolution? It is the evolution of species that are similar in appearance and behavior, even though they are not related. ...
Respiration - Educational Initiatives
Respiration - Educational Initiatives

... Possible reason for choosing B: Very few students have selected B probably because most of them are convinced that at least 1 is an example of respiration. Possible reason for choosing C: They are confused between respiration and photosynthesis and consider any gas exchange process taking place in p ...
File
File

... What essential functions must animals perform to survive? Like all organisms, animals must maintain homeostasis by gathering and responding to information, obtaining and distributing oxygen and nutrients, and collecting and eliminating carbon dioxide and other wastes. They also reproduce. ...
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Organisms at high altitude



Organisms can live at high altitude, either on land, or while flying. Decreased oxygen availability and decreased temperature make life at high altitude challenging. Despite these environmental conditions, many species have been successfully adapted at high altitudes. Animals have developed physiological adaptations to enhance oxygen uptake and delivery to tissues which can be used to sustain metabolism. The strategies used by animals to adapt to high altitude depend on their morphology and phylogeny.
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