Term
| What four biotic factors affect population growth |
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Definition
| Birthrate, deathrate, Immigration & Emigration |
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Term
| What is exponential growth |
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Definition
| A factor of population where the larger a population grows the faster it grows. The size of each generation of offspring will be larger than the one before it. |
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Term
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Definition
| when a population's growth slows and then stops, following a period of exponential growth |
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Term
| List four characteristics that are used to describe a population |
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Definition
| Geographic range, density & distribution, growth rate, age structure |
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Term
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Definition
| Area inhabited by a population |
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Term
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Definition
| Number of individualsnper unit area |
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Term
| If a population's size staysthe same but its geographic range decreased what would happen to its density |
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Definition
| Density would increase because there is less space for the existing ting population |
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Term
| The number of individuals of a single species per unit area is known as |
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Definition
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Term
| What are the three patterns of populatiion distribution that describe population density |
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Definition
| Random, Uniform, & Clumped |
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Term
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Definition
| How much time must pass before a generation is able to breed the next generation |
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Term
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Definition
| number of males and females of each age in a population |
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Term
| What natural factors can change a population's size |
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Definition
| Births, immigration, deaths, & emigration |
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Term
| Movement of individuals into an area is called |
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Definition
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Term
| Movement of individuals out of an area is called |
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Definition
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Term
| An s-shaped graph represents what type of population growth |
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Definition
| Logistic Growth Curve Shape |
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Term
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Definition
| Growth that occurs when a population's growth slows following a period of exponential growth and then stops at or nearthe carrying capacity |
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Term
| In the presence of unlimited resources and in the absence of disease and predation, what would probably happen to a bacterial populations growth |
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Definition
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Term
| A population graph shaped like a "J" represents what type of population growth |
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Definition
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Term
| What is it called when a population's birthrate equals its death rate |
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Definition
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Term
| The maximum number of organisms of a particular species that can be supported by an environment is called |
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Definition
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Term
| What is a limiting factor of population growth |
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Definition
| a factor that controls the growth of a population |
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Term
| A limiting factor that depends on population size is called a |
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Definition
| density dependent limiting factor |
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Term
| List six density dependent limiting factors |
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Definition
| competition, predation,herbivory, parasitism, disease, stress from overcrowding |
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Term
| What are the two categories of Density - Independent Limiting Factors |
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Definition
| Unusual Weather & Natural Disasters |
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Term
| List three Unusual Weather situations that cause density independent limiting |
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Definition
| Hurricanes, droughts, or floods |
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Term
| Describe the general trend of human population growth over time |
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Definition
| For tens of thousands of years, the human population grew very slowly. Then, about 500 years ago the population began to grow exponentially and then began to slow after the 1950's. It is still growing but more slowly than before. |
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Term
| Who was Thomas Malthus and what did he predict |
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Definition
| an English economist in the early 1800's who predicted that the limiting factors of human population were war (competition), limited resources (famine), and parasitism (disease). |
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Term
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Definition
| scientific study of human populations |
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Term
| What is demographic transition |
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Definition
| when a human population transitions from high birthrates and high deathrates to low birthrates and low deathrates |
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Term
| what is an age structure diagram |
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Definition
| a graph that lists a population not by overall size but by age and sex. This allows a scientist to predict future population growth |
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Term
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Definition
| an agricultural practice of clearing large areas of land to plant a single highly productive crop year after year |
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Term
| What is a renewable resource |
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Definition
| a resource that can be produced or replaced by a healthy ecosystem |
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Term
| What are some examples of nonrenewable resources |
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Definition
| fossiles fuels like coal, oil, and natural gas |
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Term
| what is sustainable development |
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Definition
| development of natural resources in a way that provide for human needs while preserving the ecosystem |
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Term
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Definition
| a process caused by nonsustainable farming, overgrazing, and seasonal drought which changes farmland to desert |
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Term
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Definition
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Term
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Definition
| a harmful material that can enter the biosphere |
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Term
| What is biological magnification |
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Definition
| When a pollutant accumulates in the tissues of a creature lower on the food chain which is then eaten by a consumer higher on the food chain resulting in higher levels of contamination at the upper levels of the food chain |
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Term
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Definition
| a gray-brown haze formed by chemical reactions among pollutants released into the air by industrial processes and automobiles |
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Term
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Definition
| When nitrogen and sulpher compounds released by factories and homes combines with water vapor to form nitric and sulfuric acids which are then carried by wind currents to other areas where they fall and erode living and nonliving things |
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Term
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Definition
| the total of all the genetically based variation in all organisms in the biosphere |
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Term
| What is species diversity |
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Definition
| the number of different species in the biosphere or in a particular area |
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Term
| What are the five steps of hearing in your ear |
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Definition
| 1) Sound vibrations enter the ear and travel down the ear canal 2) Sound vibrations strike the ear drum and cause vibrations 3) the Malleus, Incus, and Stapes bones carry the vibrations into the coclea 4) The coclea which is shaped like a snail has tiny hairs that are connected to sensory nerves. Each nerve is sensitive to a different frequency. 5) All the hair nerves bundle together and go to the brain alon gthe auditory nerve |
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Term
| What is the path of oxygen from the outside world to the heart |
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Definition
| Enters your nose or throat Travels down your trachea Ciilia catch dust and dirt Oxygen enters the left or right lung through the bronchi Branches off into the bronchial tree at the end of the bronchioles it enters the alveoli Oxygen seeps through the walls of the alveoli and enters a red blood cell Travels along the pulmonary vein to the heart |
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Term
| What is the path of oxygen from the heart back to the lungs |
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Definition
| Oxygen rich blood enters the left Atrium and then move into the left ventricle red blood cells are pumped out of the heart and into the aorta The aorta branches off into arteries and then into arteriole Finally a capillary that is one cell wide wraps around a single cell and drops off its oxygen and picks up carbon dioxide The red blood cell with its CO2 travels along venules to veins and finally reaches the vena cava The vena cava enters the right atrium of the heart and then enters the right ventricle where it is pumped to the pulmonary artery which goes to the lungs |
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Term
| Part of the throat used for speaking |
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Definition
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Term
| Carry blood back to the heart |
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Definition
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Term
| Carry blood from heart to body |
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Definition
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Term
| Flap of muscle that keeps food from getting in your lungs when you swallow |
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Definition
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Term
| Muscle just below the lungs that contracts and relaxes to change the air pressure in your chest and allows you to breathe |
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Definition
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Term
| 300 million tiny sacs in your lungs that transfer gasses to and from your blood |
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Definition
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Term
| tube that takes air to your lungs |
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Definition
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Term
| the trachea splits into two of these to take air into the left or right lung |
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Definition
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Term
| the process of taking in oxygen to be used by the cells to make energy |
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Definition
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Term
| Main part of the throat (back of the throat) |
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Definition
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Term
| What are the four parts of blood |
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Definition
| Plasma red blood cells platelets white blood cells |
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Term
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Definition
Platelets and red blood cells exit the body through the cut in the skin
they release a chemical that turns some of your plasma into fibrin
Fibrin forms a net across the wound which catches blood cells
and forms a scab |
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Term
| cells in the blood that transport oxygen |
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Definition
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Term
cells that fight germs and defend your body from disease.
What are they and how do they do it. |
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Definition
| White blood cells engulf harmful bacteria |
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Term
| eight combinations of antigens in the blood that make it difficult to get a blood transfusion from someone else |
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Definition
| Blood types: A, A neg, B, B neg, AB, AB neg, O neg & O |
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Term
| lower half of each side of the heart |
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Definition
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Term
| main artery from the heart to the rest of the body |
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Definition
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Term
| tiny blood vessels that lie between the cells |
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Definition
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Term
| tiny fragments of cells that are carried in the blood, help prevent bleeding if a blood vessel is damaged |
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Definition
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Term
| tubes that carry blood around your body |
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Definition
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Term
| upper half of each side of the heart |
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Definition
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Term
| It is 4 meters long and contains enzymes that break down food into very small pieces |
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Definition
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Term
| Water is removed from undigestible food (fiber) here |
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Definition
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Term
| Tiny projections on the intestine walls that transfer food from the intestines to the blood stream |
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Definition
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Term
| How does the stomach work |
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Definition
Bolus of food from the mouth enters through the esophogial sphincter into the fundus of the stomach
The stretchy bag mashes food into a sloppy soup callled chyme
by soaking it in gastric acid
It exits the stomach through the pyloric sphincter
and moves into the small intestine |
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Term
| Describe Path of Digestion Mouth to Stomach |
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Definition
1. The mouth- Digestion begins when food enters the mouth. Chewing begins breaking down the food. Saliva begins breaking down the carbohydrates. vitamin B is absorbed through the lining of the mouth
2. The esophagus- the bolus of food enters the esophagus. The esophagus is a muscular tube that helps move the food along to the fundus of the stomach.
3. The Stomach- In the stomach the enzyme pepsin is excreted and mixes with the hydrochloric acid present in the stomach to begin the digestion of proteins. Over several hours the food is moved from the fundus to the pylorus of the stomach
http://nutrition.suite101.com/article.cfm/6_steps_of_digestion |
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Term
| Describe Path of Digestion from Stomach to Commode |
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Definition
4. The intestines- The chyme enters the small intestines through the pyloric sphincter where all the nutrients are absorbed through the microscopic finger like villi on the lining of the small intestines. Vitamins and minerals pair up with carbohydrates, fats and proteins to be absorbed.
5. The Liver - The liver excretes bile into the small intestines to emulsify the fats in the chyme, making it easier for the body to absorb.
6. The Large intestines- What ever is not absorbed in the small intestines moves on to the large intestines where water is removed from the fiber.
7. Leftover feces exit the body through the rectal sphincter
http://nutrition.suite101.com/article.cfm/6_steps_of_digestion |
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Term
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Definition
The Liver and the gallbladder- The liver excretes bile into the small intestines to emulsify the fats in the chyme, making it easier for the body to absorb. The left over bile is recycled into the gallbladder where it will be filtered by the liver and reused.
http://nutrition.suite101.com/article.cfm/6_steps_of_digestion |
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Term
| What are the 5 groups of vertebrates? |
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Definition
| Fish Amphibians Reptiles Mammals Birds |
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Term
| What are the five kingdoms of living things? |
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Definition
| Animalia Plantae Fungi Protista Monera |
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Term
| What are the classifications of living things? |
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Definition
| Kingdom Phylum Class Order Family Genus Species |
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Term
| What are the invertebrate classifications? |
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Definition
| Sponges Stinging-Cell Animals Flatworms Roundworms Segmented Worms Mollusks Sea Stars Arthropods |
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