Case studies in biogeography
... Smith et al. investigate phylogenies and diversity patterns of clades of Holarctic tree frogs. They test the hypothesis that within-group diversity increases toward lower latitudes. While tree frogs have their global diversity maximum in the tropics (mainly due to the very high diversity in the Neot ...
... Smith et al. investigate phylogenies and diversity patterns of clades of Holarctic tree frogs. They test the hypothesis that within-group diversity increases toward lower latitudes. While tree frogs have their global diversity maximum in the tropics (mainly due to the very high diversity in the Neot ...
PDF
... extreme size of the adults, probably not weighing much more than 10 kg (and usually much less than this) in life [7,9,11]. As a comparison, offspring of the largest land mammals - the African elephant Loxodonta africana and Indian elephant Elephas maximus weigh on average ,100 kg at birth, respectiv ...
... extreme size of the adults, probably not weighing much more than 10 kg (and usually much less than this) in life [7,9,11]. As a comparison, offspring of the largest land mammals - the African elephant Loxodonta africana and Indian elephant Elephas maximus weigh on average ,100 kg at birth, respectiv ...
BIO Grade 11 U: Diversity of Living Things
... Have an open circulatory system, with blood bathing a system of open spaces called a hemoceol. In many groups, such as insects, they have a tracheal system to help exchange of gases. Have internal fertilization. The eggs of some species develop directly into a form that resembles the adult, but ...
... Have an open circulatory system, with blood bathing a system of open spaces called a hemoceol. In many groups, such as insects, they have a tracheal system to help exchange of gases. Have internal fertilization. The eggs of some species develop directly into a form that resembles the adult, but ...
Ninth Lecture 9. Respiratory system
... The lungs are divided into lobes: three lobes in the right lung and two lobes in the left lung. The space between the right and left lungs is called the (16) mediastinum198. It contains the heart, aorta199, oesophagus, and bronchi. A serous membrane, the pleura200, covers the lobes of the lungs and ...
... The lungs are divided into lobes: three lobes in the right lung and two lobes in the left lung. The space between the right and left lungs is called the (16) mediastinum198. It contains the heart, aorta199, oesophagus, and bronchi. A serous membrane, the pleura200, covers the lobes of the lungs and ...
Patterns in Ecology
... Communities. Chicago University Press). Under these circumstances, small-scale field manipulation experiments that seek to 'explain the structure' or 'understand the processes controlling diversity' are simply looking at second, even third-order, phenomena - the noise round the main regression line. ...
... Communities. Chicago University Press). Under these circumstances, small-scale field manipulation experiments that seek to 'explain the structure' or 'understand the processes controlling diversity' are simply looking at second, even third-order, phenomena - the noise round the main regression line. ...
body systems pages 422-429
... 6 Analyze Look closely at the body systems shown on these pages. Then circle the two systems that send messages around the body. ...
... 6 Analyze Look closely at the body systems shown on these pages. Then circle the two systems that send messages around the body. ...
RevShtExIB160
... Define the term “patterns of dispersal” and name three different types Define the term growth rate and give the mathematic units used in expressing it. Explain the mathematical relationship between the birth rate, death rate, and growth rate. Define logistic population growth and describe how a grap ...
... Define the term “patterns of dispersal” and name three different types Define the term growth rate and give the mathematic units used in expressing it. Explain the mathematical relationship between the birth rate, death rate, and growth rate. Define logistic population growth and describe how a grap ...
The Muscular System
... • The skeletal muscles are attached to the bones of the body and have the main job of providing the pulling power for the movement of the body. These are movements that we can control ourselves. • The smooth muscles are muscles that contract and relax without our control. They move in order to keep ...
... • The skeletal muscles are attached to the bones of the body and have the main job of providing the pulling power for the movement of the body. These are movements that we can control ourselves. • The smooth muscles are muscles that contract and relax without our control. They move in order to keep ...
An_Introduction_To_Ecology_2012...arizona
... • Succession continued: • Secondary Sucession – an established land is disturbed or removed by natural or man-made processes such as fire, floods, mowing a field, hurricanes, tornadoes, clear-cutting a forest called FRAGMENTATION. ...
... • Succession continued: • Secondary Sucession – an established land is disturbed or removed by natural or man-made processes such as fire, floods, mowing a field, hurricanes, tornadoes, clear-cutting a forest called FRAGMENTATION. ...
Identifying characteristics of classes of vertebrates
... fish and some young amphibians takes place in gills. Some amphibians, such as salamanders, can also absorb oxygen through their moist skin. • Teacher Note: Gills are located on both sides of a fish’s or a young amphibian’s head. Water enters through the animal’s mouth and passes over its gills. The ...
... fish and some young amphibians takes place in gills. Some amphibians, such as salamanders, can also absorb oxygen through their moist skin. • Teacher Note: Gills are located on both sides of a fish’s or a young amphibian’s head. Water enters through the animal’s mouth and passes over its gills. The ...
Human Anatomy and Physiology II - Metropolitan Community College
... Three general themes will be emphasized throughout the quarter. The student will be expected to: ...
... Three general themes will be emphasized throughout the quarter. The student will be expected to: ...
B1 Revision Checklist
... Explain why drugs need to be tested before they can be prescribed. Describe the uses and problems associated with thalidomide. Explain how the drug testing procedure for thalidomide was inappropriate. Describe the main steps in testing a new drug. Explain the terms placebo and double-blind t ...
... Explain why drugs need to be tested before they can be prescribed. Describe the uses and problems associated with thalidomide. Explain how the drug testing procedure for thalidomide was inappropriate. Describe the main steps in testing a new drug. Explain the terms placebo and double-blind t ...
Life Processes - My Dear Students
... something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of life processes is a fundamental criterion that can be used to decide whether something is alive or not. Question 3: What are outside raw materials used fo ...
... something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of life processes is a fundamental criterion that can be used to decide whether something is alive or not. Question 3: What are outside raw materials used fo ...
Chapter 17
... to change the body shape. Contraction of circular muscles causes the coelomic fluid to exert a force forwards and backwards and body elongates. • Contraction of longitudinal muscles causes coelomic fluid to exert lateral force and body widens. When divide coelom into compartments by septa can ...
... to change the body shape. Contraction of circular muscles causes the coelomic fluid to exert a force forwards and backwards and body elongates. • Contraction of longitudinal muscles causes coelomic fluid to exert lateral force and body widens. When divide coelom into compartments by septa can ...
Pennsylvania Salamanders
... complex wetland systems, e.g., shrub swamps and vernal pools, are being replaced by impoundments or artificial ponds. Bull frogs are voracious predators of smaller animals. At sites where they become well-established, they can eliminate other frog species, through both competition for food and direc ...
... complex wetland systems, e.g., shrub swamps and vernal pools, are being replaced by impoundments or artificial ponds. Bull frogs are voracious predators of smaller animals. At sites where they become well-established, they can eliminate other frog species, through both competition for food and direc ...
Chondrichthyes - Mayfield City Schools
... most bony fishes, the upper lobe of a shark's caudal fin is larger than the lower lobe. As the caudal fin moves back and forth to propel the shark forward, it also moves upward. As the caudal fin continues to lift, the shark's head points down. The overall effect of the motion of the caudal fin resu ...
... most bony fishes, the upper lobe of a shark's caudal fin is larger than the lower lobe. As the caudal fin moves back and forth to propel the shark forward, it also moves upward. As the caudal fin continues to lift, the shark's head points down. The overall effect of the motion of the caudal fin resu ...
the annelids and the
... Some are mobile / stationary filter feeders while others are mobile / stationary and require location. Energy consumption in animals is higher / lower than it is in plants, so animals require less / more oxygen. ...
... Some are mobile / stationary filter feeders while others are mobile / stationary and require location. Energy consumption in animals is higher / lower than it is in plants, so animals require less / more oxygen. ...
Positive feedback system
... In this case, an increase in extracellular CO 2 above normal levels triggers a receptor, which sends information to the respiratory control center (integrating center) to increase breathing. The effectors in this example are the respiratory muscles. This increase in breathing will reduce extrace ...
... In this case, an increase in extracellular CO 2 above normal levels triggers a receptor, which sends information to the respiratory control center (integrating center) to increase breathing. The effectors in this example are the respiratory muscles. This increase in breathing will reduce extrace ...
Population Basics
... The example shown above, taken from Wessell and Hopson shows the population of Italian Honeybees introduced near Baltimore over a three-month period. The ultimate population size, near K, the carrying capacity was determined in this case by the physical size of the available hives. At this steady st ...
... The example shown above, taken from Wessell and Hopson shows the population of Italian Honeybees introduced near Baltimore over a three-month period. The ultimate population size, near K, the carrying capacity was determined in this case by the physical size of the available hives. At this steady st ...
Chapter 17
... to change the body shape. Contraction of circular muscles causes the coelomic fluid to exert a force forwards and backwards and body elongates. • Contraction of longitudinal muscles causes coelomic fluid to exert lateral force and body widens. When divide coelom into compartments by septa can locali ...
... to change the body shape. Contraction of circular muscles causes the coelomic fluid to exert a force forwards and backwards and body elongates. • Contraction of longitudinal muscles causes coelomic fluid to exert lateral force and body widens. When divide coelom into compartments by septa can locali ...
Arthropoda
... Insects are the animal group with the greatest diversity of species. Almost 750,000 insect species are known, making up approximately 55% of the total already recorded species of living organisms (compare this with mammals, with no more than 4,000 known species). However, scientists estimate that th ...
... Insects are the animal group with the greatest diversity of species. Almost 750,000 insect species are known, making up approximately 55% of the total already recorded species of living organisms (compare this with mammals, with no more than 4,000 known species). However, scientists estimate that th ...