homeostasis power point sf.pdf

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$Final Copy Grade 8 Midterm Exam Math January 2011.pdf$

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The amount of blood the heart pumps is known as the cardiac output. • Two factors: Heart rate (average 70 beats/min) Stroke volume (average 70 mL) CO = HR x SV A low resting heart rate is associated with good fitness. This means the stroke volume is high.
The septum is the wall that separates the ventricles. If a hole exists, blood from the ventricles can mix, leading to poor oxygen delivery.
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READ Page 298 -321 REVIEW Lab, Work
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In chapter 9 we will look into home
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Why do organisms spend precious tim
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Proteins are held together loosely
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Other reasons that organisms need t
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An organism maintains homeostasis b
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To see how dynamic equilibrium work
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If the sun is exceptionally strong,
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Once everything is back to normal,
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This time, the furnace will start u
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Humans and many other organisms wil
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There are advantages and disadvanta
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When an organism needs to change it
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There are three „players‟ in fe
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A temperature sensor on the skin (s
Page 31 and 32:
As the sweat gland works, the skin
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Once the skin receptor stops signal
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Positive feedback is rare. This is
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Organisms that can maintain homeost
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Tardigrades can survive: • Temper
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Biology 2201
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What the circulatory system? What
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What sort of items are transported
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The most basic of animals, such as
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A circulatory system where the flui
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Mammals have a 4- chambered heart.
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There are two sections to the syste
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There are three elements to the cir
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Vessels are the pipes and tubes tha
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Most arteries and arterioles carry
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Arteries are thickwalled and built
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In total, arteries hold about 30% o
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Most veins and venules carry deoxyg
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Veins contain blood that is at a mu
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The flow of blood through the veins
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Note the relative size of the inter
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Capillaries are one endothelial cel
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Nutrients and wastes are transferre
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Note the thinness of the capillary
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Biology 2201
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There are three elements to the cir
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The Lymphatic system is an open sys
Page 85 and 86: Lymph circulates throughout the bod
Page 87 and 88: Blood is the tissue through which a
Page 89 and 90: The high speeds force the heavier c
Page 91 and 92: The blood normally contains: Plasm
Page 93 and 94: Red blood cells are specialized for
Page 95 and 96: Each hemoglobin protein contains 4
Page 97 and 98: The binding of oxygen to hemoglobin
Page 99 and 100: Hemoglobin releases oxygen more slo
Page 103 and 104: Unlike red blood cells, white blood
Page 105 and 106: Macrophages have a short lifespan o
Page 107: Lymphocytes play a role in the bodi
Page 110 and 111: Platelets have a short lifespan of
Page 112 and 113: 1. Broken blood vessels release sub
Page 117 and 118: The fluid portion of the blood is c
Page 119 and 120: Points to Consider: What is the typ
Page 121 and 122: There are three elements to the cir
Page 123 and 124: The human heart has a very challeng
Page 125 and 126: 1. Blood from the body enters the h
Page 127 and 128: 5. The pulmonary artery takes the b
Page 129 and 130: 9. The ventricles contract. The bic
Page 131 and 132: “Lub” • Softer sound • Atri
Page 133 and 134: As the atria contract, another node
Page 135: To increase the heart rate, the ner
Page 139 and 140: Points to Consider: Describe the fl
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