B3 Revision Mind Maps
... It combines with haemoglobin to form oxyhaemoglobin, which splits up to form haemoglobin and oxygen at the tissues ...
... It combines with haemoglobin to form oxyhaemoglobin, which splits up to form haemoglobin and oxygen at the tissues ...
GENETIC DIFFERENTIATION AT NUCLEAR AND
... to have hybridized in nature (Grant and Grant 1992). Furthermore, bird species have generally low levels of genetic divergence compared with other vertebrates (Avise 1983; Evans 1987), which could partly explain that, although the fate of avian hybrids is difficult to monitor in nature, many are fer ...
... to have hybridized in nature (Grant and Grant 1992). Furthermore, bird species have generally low levels of genetic divergence compared with other vertebrates (Avise 1983; Evans 1987), which could partly explain that, although the fate of avian hybrids is difficult to monitor in nature, many are fer ...
Document
... That we always find iguana’s with body temperatures that are always near their physiological optimum does not prove that iguana’s are behaviorally selected to actively maintain their body temperature by thermoregulating. It could be that they are just always found in environments in which the temper ...
... That we always find iguana’s with body temperatures that are always near their physiological optimum does not prove that iguana’s are behaviorally selected to actively maintain their body temperature by thermoregulating. It could be that they are just always found in environments in which the temper ...
STUDY GUIDE SECTION 46-1 The Circulatory System
... 2. ______Exchange of nutrients and waste between blood and body tissues occurs across a. arterioles b. capillaries c. arteries d. veins ...
... 2. ______Exchange of nutrients and waste between blood and body tissues occurs across a. arterioles b. capillaries c. arteries d. veins ...
CHAPTER 23
... - where gas exchange occurs Alveolar Sacs - common space into which alveoli empty Septal Cells - found in walls of alveoli - secrete surfactant to lower surface tension so walls of the alveoli do not stick together if lung loses all its air. Dust Cells (Alveolar Macrophages) - phagocytes that remove ...
... - where gas exchange occurs Alveolar Sacs - common space into which alveoli empty Septal Cells - found in walls of alveoli - secrete surfactant to lower surface tension so walls of the alveoli do not stick together if lung loses all its air. Dust Cells (Alveolar Macrophages) - phagocytes that remove ...
chapter 34 - Randolph Field ISD
... ° Unlike the pharyngeal slits of lancelets, which are used primarily for suspension feeding, gill slits are associated with muscles and nerves that allow water to be pumped through the slits. ° This pumping sucks in food and facilitates gas exchange. ...
... ° Unlike the pharyngeal slits of lancelets, which are used primarily for suspension feeding, gill slits are associated with muscles and nerves that allow water to be pumped through the slits. ° This pumping sucks in food and facilitates gas exchange. ...
The altered evolutionary trajectories of gene duplicates
... consequence of relaxed selection against degenerative mutations, as suggested by Ohno and by the subfunctionalization model, or a consequence of positive directional selection as suggested by the adaptive-conflict model, or both. Moreover, there might be an intrinsic bias to whole-genome analyses th ...
... consequence of relaxed selection against degenerative mutations, as suggested by Ohno and by the subfunctionalization model, or a consequence of positive directional selection as suggested by the adaptive-conflict model, or both. Moreover, there might be an intrinsic bias to whole-genome analyses th ...
The Art of Living: One Breath at a Time
... the blood. The walls of the air sacs are thin and fragile. As air sacs are destroyed, the lungs are able to transfer less and less oxygen to the bloodstream, causing shortness of breath. • Symptoms of emphysema include cough, shortness of breath and a limited exercise tolerance. ...
... the blood. The walls of the air sacs are thin and fragile. As air sacs are destroyed, the lungs are able to transfer less and less oxygen to the bloodstream, causing shortness of breath. • Symptoms of emphysema include cough, shortness of breath and a limited exercise tolerance. ...
GASEOUS EXCHANGE IN ANIMALS The majority of animals need
... other. This makes diffusion of gases very efficient because the distance between the inside of the capillary and the inside of the alveolus is very small. Furthermore, the lungs have over 700 million alveoli offering a large surface area for gaseous exchange The walls of the alveoli are also moi ...
... other. This makes diffusion of gases very efficient because the distance between the inside of the capillary and the inside of the alveolus is very small. Furthermore, the lungs have over 700 million alveoli offering a large surface area for gaseous exchange The walls of the alveoli are also moi ...
Week 1 – Cell structure and Function and Cell membranes
... - ADH travels to the kidneys in the blood and causes the kidney tubules to become less permeable and less water is absorbed back into the blood - A large volume of dilute urine is produced A marine bony fish has the problem of losing water to the sea water environment. To cope with this problem the ...
... - ADH travels to the kidneys in the blood and causes the kidney tubules to become less permeable and less water is absorbed back into the blood - A large volume of dilute urine is produced A marine bony fish has the problem of losing water to the sea water environment. To cope with this problem the ...
Answers to Mastering Concepts Questions
... into the end of the digestive tract and ejected though the anus. Senses: Arthropods have specialized sense organs that allow them to be sensitive to changes in their environments. These include changes in light, sound, scents, chemicals, potential mates, food proximity, touch, air currents, and body ...
... into the end of the digestive tract and ejected though the anus. Senses: Arthropods have specialized sense organs that allow them to be sensitive to changes in their environments. These include changes in light, sound, scents, chemicals, potential mates, food proximity, touch, air currents, and body ...
The Respiratory System
... alveoli are tiny hollow sacks in the lungs.) Alveoli are surrounded by capillaries. • When you breathe in, air fills the tiny sacks of the alveoli. Oxygen in the air moves out of the sacks and into the capillaries. At the same time, carbon dioxide and water in the blood move out of the capillaries a ...
... alveoli are tiny hollow sacks in the lungs.) Alveoli are surrounded by capillaries. • When you breathe in, air fills the tiny sacks of the alveoli. Oxygen in the air moves out of the sacks and into the capillaries. At the same time, carbon dioxide and water in the blood move out of the capillaries a ...
CHAPTER OUTLINE
... components of the bronchial tree beyond the primary bronchi compose the lungs. The Lungs The right lung has three lobes and the left has two, which further divide into lobules, and each lobule has a bronchiole serving many alveoli. Each alveolus is surrounded by an extensive capillary network where ...
... components of the bronchial tree beyond the primary bronchi compose the lungs. The Lungs The right lung has three lobes and the left has two, which further divide into lobules, and each lobule has a bronchiole serving many alveoli. Each alveolus is surrounded by an extensive capillary network where ...
Chapter 10 Section 1 Power Point
... and mussels attach themselves to rocks or underwater surfaces Clams can burrow the mud by changing the shape of its foot ...
... and mussels attach themselves to rocks or underwater surfaces Clams can burrow the mud by changing the shape of its foot ...
Module 2 Exchange and Transport
... Learning Outcomes • Explain the need for transport systems in multi-cellular animals in terms of size, activity and surface area to volume ratio • Explain the meaning of the terms single and double circulatory systems with reference to the circulatory systems of fish and mammals • explain the meani ...
... Learning Outcomes • Explain the need for transport systems in multi-cellular animals in terms of size, activity and surface area to volume ratio • Explain the meaning of the terms single and double circulatory systems with reference to the circulatory systems of fish and mammals • explain the meani ...
Module 2 Exchange and Transport
... Learning Outcomes • Explain the need for transport systems in multi-cellular animals in terms of size, activity and surface area to volume ratio • Explain the meaning of the terms single and double circulatory systems with reference to the circulatory systems of fish and mammals • explain the meani ...
... Learning Outcomes • Explain the need for transport systems in multi-cellular animals in terms of size, activity and surface area to volume ratio • Explain the meaning of the terms single and double circulatory systems with reference to the circulatory systems of fish and mammals • explain the meani ...
gcse mind maps 1 revision - Watford Grammar School for Boys Intranet
... In longer events fatigue develops much more gradually as the body is able to process some of its lost energy and minimise lactic acid build up during exercise ...
... In longer events fatigue develops much more gradually as the body is able to process some of its lost energy and minimise lactic acid build up during exercise ...
8.L.5.1 Practice Questions
... Food and oxygen are produced during photosynthesis in green plants. Chlorophyll is one thing that is needed for photosynthesis. Name two more factors that are needed for photosynthesis. ...
... Food and oxygen are produced during photosynthesis in green plants. Chlorophyll is one thing that is needed for photosynthesis. Name two more factors that are needed for photosynthesis. ...
Anatomy Workbook - Wright Wonders
... it length. During contraction the actin and myosin filaments slide over each other; this brings about an overall shortening of the sarcomere. The muscle fiber is made up of many sarcomeres attached in a chain; the shortening of each sarcomere gives the overall shortening of the muscle fiber and ther ...
... it length. During contraction the actin and myosin filaments slide over each other; this brings about an overall shortening of the sarcomere. The muscle fiber is made up of many sarcomeres attached in a chain; the shortening of each sarcomere gives the overall shortening of the muscle fiber and ther ...
the respiratory system
... the cell walls of the alveoli into the capillaries of the circulation system. The blood picks up the oxygen and releases to the alveoli carbon dioxide, the waste product carried from the body’s living cells. Blood which contains carbon dioxide from the cells of the body will appear blue, while blood ...
... the cell walls of the alveoli into the capillaries of the circulation system. The blood picks up the oxygen and releases to the alveoli carbon dioxide, the waste product carried from the body’s living cells. Blood which contains carbon dioxide from the cells of the body will appear blue, while blood ...
diversity of animals
... Some scientists have estimated that there are up to 7,7 million species of animals on Earth, with millions more still to be discovered. South Africa is fortunate to have the largest variety of animals on the planet. Both animals and plants are different to organisms in the other Kingdoms as they are ...
... Some scientists have estimated that there are up to 7,7 million species of animals on Earth, with millions more still to be discovered. South Africa is fortunate to have the largest variety of animals on the planet. Both animals and plants are different to organisms in the other Kingdoms as they are ...
Organisms at high altitude
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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.