Segmented Worms
... – Clitellum: a band of thickened, specialized segments that secretes a mucus ring into which eggs and sperm are released and fertilization occurs – The ring slips off the body and form a protective cocoon for the worms that hatch a week later ...
... – Clitellum: a band of thickened, specialized segments that secretes a mucus ring into which eggs and sperm are released and fertilization occurs – The ring slips off the body and form a protective cocoon for the worms that hatch a week later ...
Honors Biology Chapter 22 Gas Exchange
... People cannot survive in the air at the world’s highest peaks in the Himalayan Mountains ...
... People cannot survive in the air at the world’s highest peaks in the Himalayan Mountains ...
Chapter 20
... of the heart. Blood moves through the veins, say all the way down in your toes, back towards the heart with much less force, pushed along by the contraction of your leg muscles and kept from flowing backwards by valves. If you are not exercising the muscles of your arms and legs they are not helping ...
... of the heart. Blood moves through the veins, say all the way down in your toes, back towards the heart with much less force, pushed along by the contraction of your leg muscles and kept from flowing backwards by valves. If you are not exercising the muscles of your arms and legs they are not helping ...
Body Systems Study Guide What is a cell? The basic unit of life What
... algae are protists. Sometimes they are called the odds and ends kingdom because its members are so different from one another. Plants: With over 250,000 species, the plant kingdom is the second largest kingdom. Plant species range from the tiny green mosses to giant trees. In addition plants are aut ...
... algae are protists. Sometimes they are called the odds and ends kingdom because its members are so different from one another. Plants: With over 250,000 species, the plant kingdom is the second largest kingdom. Plant species range from the tiny green mosses to giant trees. In addition plants are aut ...
The Human Body
... Homeostasis • Dynamic state of equilibrium • 3 components – Receptor (afferent) – Control center (set point) – Effector (efferent) ...
... Homeostasis • Dynamic state of equilibrium • 3 components – Receptor (afferent) – Control center (set point) – Effector (efferent) ...
document
... Cells lining the blood vessels are called endothelial cells Their structure is flat, which forms pavement like patterns on the inside of vessels Good for function: keep the vessels from ...
... Cells lining the blood vessels are called endothelial cells Their structure is flat, which forms pavement like patterns on the inside of vessels Good for function: keep the vessels from ...
Circulatory system
... Veins carry blood towards from the heart. veins have valves which act to stop the blood from going in the wrong direction. thin muscle and elastic fibres ...
... Veins carry blood towards from the heart. veins have valves which act to stop the blood from going in the wrong direction. thin muscle and elastic fibres ...
Unit VII: Animal Structure and Function, Part I
... Automatic Control of Breathing Breathing Control Centers • medulla oblongata and pons + sets basic breathing rhythm • monitors CO2 levels in blood + pH of blood - drop in pH, increase the rate/depth • O2 sensors in aorta and carotid arteries + sense severely depressed levels of O2 (high altitude) • ...
... Automatic Control of Breathing Breathing Control Centers • medulla oblongata and pons + sets basic breathing rhythm • monitors CO2 levels in blood + pH of blood - drop in pH, increase the rate/depth • O2 sensors in aorta and carotid arteries + sense severely depressed levels of O2 (high altitude) • ...
Chap 16 Study Outline
... Over 98% of oxygen is carried in the blood bound to _______________________ of red blood cells, producing _____________________________. This chemical is unstable in areas where the concentration of oxygen is low, and gives up its oxygen molecules in those areas. More oxygen is released as the blood ...
... Over 98% of oxygen is carried in the blood bound to _______________________ of red blood cells, producing _____________________________. This chemical is unstable in areas where the concentration of oxygen is low, and gives up its oxygen molecules in those areas. More oxygen is released as the blood ...
Respiration
... – Much less efficient, takes place during emergencies when not enough O2 is available – Produces alcohol in yeasts – Produces lactic acid in mammals ...
... – Much less efficient, takes place during emergencies when not enough O2 is available – Produces alcohol in yeasts – Produces lactic acid in mammals ...
Blood Cells
... changes in fluid concentration changes in electrolyte concentration amount of adipose tissue about 8% of body weight about 5 liters 5-6 (M) 4-5 L (F) pH 7.35-7.45 ...
... changes in fluid concentration changes in electrolyte concentration amount of adipose tissue about 8% of body weight about 5 liters 5-6 (M) 4-5 L (F) pH 7.35-7.45 ...
the Note
... Asthma - air passages become inflamed and swollen, the smooth muscles of the bronchi or bronchioles contract and the air passages produce an increased amount of mucus. This causes the air passages that lead to the alveoli to narrow so that less air can pass through them. Hay fever - is an allergy ca ...
... Asthma - air passages become inflamed and swollen, the smooth muscles of the bronchi or bronchioles contract and the air passages produce an increased amount of mucus. This causes the air passages that lead to the alveoli to narrow so that less air can pass through them. Hay fever - is an allergy ca ...
Homeostasis final lect
... Control system of the body Coordination of body activities Quick response to stimuli Consciousness, memory and intellectual functions ...
... Control system of the body Coordination of body activities Quick response to stimuli Consciousness, memory and intellectual functions ...
Circulatory System
... decreases with distance from the heart • Resulting gradient of pressure causes continuing flow of blood – fluids move from regions of high pressure to regions of low pressure • Differences in systolic and diastolic pressures diminish with distance from heart • By the time blood reaches capillaries t ...
... decreases with distance from the heart • Resulting gradient of pressure causes continuing flow of blood – fluids move from regions of high pressure to regions of low pressure • Differences in systolic and diastolic pressures diminish with distance from heart • By the time blood reaches capillaries t ...
Urinary System
... (hence water resorption) is controlled by ADH released by the posterior pituitary in response to stimulation of the same osmoreceptors that are involved in the thirst mechanism ...
... (hence water resorption) is controlled by ADH released by the posterior pituitary in response to stimulation of the same osmoreceptors that are involved in the thirst mechanism ...
Renal Physiology 1
... Glomerulus and Bowman’s capsule • Glomerular filtrate drains into Bowman’s space, and then into proximal convoluted tubule. • Endothelium has pores to allow small molecules through. • Podocytes have negative charge. This and the basement membrane stops proteins getting through into tubular fluid. • ...
... Glomerulus and Bowman’s capsule • Glomerular filtrate drains into Bowman’s space, and then into proximal convoluted tubule. • Endothelium has pores to allow small molecules through. • Podocytes have negative charge. This and the basement membrane stops proteins getting through into tubular fluid. • ...
RESPIRATION IN LIVING THINGS GRADE:07 NOTES Respiration is
... We need to get oxygen from the air into the blood, and we need to remove waste carbon dioxide from the blood into the air. Moving gases like this is called gas exchange. The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. Here are some features of the alveoli that al ...
... We need to get oxygen from the air into the blood, and we need to remove waste carbon dioxide from the blood into the air. Moving gases like this is called gas exchange. The alveoli are adapted to make gas exchange in lungs happen easily and efficiently. Here are some features of the alveoli that al ...
ch. 16
... gives up its oxygen molecules in those areas. More oxygen is released as the blood concentration of carbon dioxide increases, as the blood becomes more acidic, and as blood temperature increases. A deficiency of oxygen reaching the tissues is called _____________________ and has a variety of causes. ...
... gives up its oxygen molecules in those areas. More oxygen is released as the blood concentration of carbon dioxide increases, as the blood becomes more acidic, and as blood temperature increases. A deficiency of oxygen reaching the tissues is called _____________________ and has a variety of causes. ...
File
... B3.1.1 Dissolved substances Define the term ‘diffusion’. Random movement of particles in a liquid of gas, from an area of high concentration to a low concentration. Define the term ‘osmosis’ and explain what a partially permeable membrane is. Osmosis is the diffusion of water molecules from a dilute ...
... B3.1.1 Dissolved substances Define the term ‘diffusion’. Random movement of particles in a liquid of gas, from an area of high concentration to a low concentration. Define the term ‘osmosis’ and explain what a partially permeable membrane is. Osmosis is the diffusion of water molecules from a dilute ...
Which of the following organs is NOT used during digestion
... Respiratory System -exchanges gases between the body and the external environment (brings in oxygen, removes carbon dioxide) * Trachea - A tube that carries air from the throat to the lungs. * Lungs - Two large organs located in the chest and are the main organs of the respiratory system. * Bronchi ...
... Respiratory System -exchanges gases between the body and the external environment (brings in oxygen, removes carbon dioxide) * Trachea - A tube that carries air from the throat to the lungs. * Lungs - Two large organs located in the chest and are the main organs of the respiratory system. * Bronchi ...
Chapter 16 Study Outline
... concentration of oxygen is low, and gives up its oxygen molecules in those areas. More oxygen is released as the blood concentration of carbon dioxide increases, as the blood becomes more acidic, and as blood temperature increases. A deficiency of oxygen reaching the tissues is called ______________ ...
... concentration of oxygen is low, and gives up its oxygen molecules in those areas. More oxygen is released as the blood concentration of carbon dioxide increases, as the blood becomes more acidic, and as blood temperature increases. A deficiency of oxygen reaching the tissues is called ______________ ...
Biology
... 58. The large intestine is the location of nutrient absorption. ______________ 59. Arteries always carry oxygenated blood. ______________ 60. Goblet cells secrete acid for digestion in the stomach. ______________ 61. The esophagus is a muscular tube that contracts to push the food to the stomach. __ ...
... 58. The large intestine is the location of nutrient absorption. ______________ 59. Arteries always carry oxygenated blood. ______________ 60. Goblet cells secrete acid for digestion in the stomach. ______________ 61. The esophagus is a muscular tube that contracts to push the food to the stomach. __ ...
Homeostasis
Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, an effector mechanism that can vary that condition, and a negative feedback connection between the two.