Ecology
... 4. In a pyramid of numbers, what type of organism makes up the base of the pyramid? [ producers / consumers / predators ] 5. When plants lose water from their leaves, it is called _______________________ 6. When it rains, it is called _______________________________________ ...
... 4. In a pyramid of numbers, what type of organism makes up the base of the pyramid? [ producers / consumers / predators ] 5. When plants lose water from their leaves, it is called _______________________ 6. When it rains, it is called _______________________________________ ...
2016-2017 STUDY GUIDE ECOLOGY W ANSWERS
... 51. In the graph above, the predator and prey populations peak how often, (approximately)? a. every 10 years ...
... 51. In the graph above, the predator and prey populations peak how often, (approximately)? a. every 10 years ...
Lesson Plan
... What do I need to be successful? Materials: Laptop, Pen, Pencil What do I need to before next class? Follow Up/HW: Finish food web What are we learning? Daily Objective: Students will demonstrate knowledge of Ecology unit by completing a unit exam. TEKS/AP/Standards: 11B: Investigate and analyze how ...
... What do I need to be successful? Materials: Laptop, Pen, Pencil What do I need to before next class? Follow Up/HW: Finish food web What are we learning? Daily Objective: Students will demonstrate knowledge of Ecology unit by completing a unit exam. TEKS/AP/Standards: 11B: Investigate and analyze how ...
Ecology - Dickinson ISD
... together with the non-living or physical environment. • Example: pond ...
... together with the non-living or physical environment. • Example: pond ...
summary notes the biosphere
... The growth of a population can be limited by: predation, lack of food or water, disease, build up of toxic wastes and lack of space. Competition occurs when 2 or more individuals need a resource (like food or shelter) that is in short supply. When 2 species compete for a resource the result will be ...
... The growth of a population can be limited by: predation, lack of food or water, disease, build up of toxic wastes and lack of space. Competition occurs when 2 or more individuals need a resource (like food or shelter) that is in short supply. When 2 species compete for a resource the result will be ...
Ecology PPT
... source (carbohydrate) produced by photosynthesis. Consumers take in this energy when they eat producers or other consumers. ...
... source (carbohydrate) produced by photosynthesis. Consumers take in this energy when they eat producers or other consumers. ...
STUDY GUIDE FOR ECOLOGY TEST
... 8. The largest population an environment can support is its __CARRYING CAPACITY__. 9. One type of competition involves individuals competing for resources. The other involves competition between different ...
... 8. The largest population an environment can support is its __CARRYING CAPACITY__. 9. One type of competition involves individuals competing for resources. The other involves competition between different ...
rocks, man-made items, rain, sunlight
... b. Consumer – “heterotroph” – get energy from the producer directly or indirectly Primary consumer – herbivore (eats producers) Secondary consumer – eats herbivores Tertiary consumer – eats secondary consumers Quaternary consumer – eats tertiary consumers c. Carnivore – eats other heterotrophs d. Sc ...
... b. Consumer – “heterotroph” – get energy from the producer directly or indirectly Primary consumer – herbivore (eats producers) Secondary consumer – eats herbivores Tertiary consumer – eats secondary consumers Quaternary consumer – eats tertiary consumers c. Carnivore – eats other heterotrophs d. Sc ...
The Biosphere
... • Chemosynthesis: using chemical energy to make carbohydrates. • Usually performed bacteria found in harsh environments – Ocean vents, volcanoes, hot-acidic environments ...
... • Chemosynthesis: using chemical energy to make carbohydrates. • Usually performed bacteria found in harsh environments – Ocean vents, volcanoes, hot-acidic environments ...
Environmental Science Chapter One – Everything is Connected
... live together and interact with one another. Abiotic - The abiotic part of the environment includes all of the physical factors – water, soil, light and temperature – that affect organisms living in a particular area. Population – A population is a group of individuals of the same species that live ...
... live together and interact with one another. Abiotic - The abiotic part of the environment includes all of the physical factors – water, soil, light and temperature – that affect organisms living in a particular area. Population – A population is a group of individuals of the same species that live ...
Ch.18 Notes - Green Local Schools
... 2. Explain the important role of decomposers in an ecosystem 3. Contrast a food chain w/ a food web 4. Explain why an ecosystem usually contains only a few trophic levels ...
... 2. Explain the important role of decomposers in an ecosystem 3. Contrast a food chain w/ a food web 4. Explain why an ecosystem usually contains only a few trophic levels ...
Chapter 37
... These changes can increase nutrients in aquatic ecosystems – Algal and cyanobacteria blooms ...
... These changes can increase nutrients in aquatic ecosystems – Algal and cyanobacteria blooms ...
ecology 3 week assessment review
... Explain which animals would be affected if a disease killed out all the grass. All would be affected because of lack of food. ...
... Explain which animals would be affected if a disease killed out all the grass. All would be affected because of lack of food. ...
Ecology
... by plants in photosynthesis • Only 1-5% is used this way • The energy is then passed along the food as one organism eats another, flows in one direction • About 10% of the stored energy in a trophic level gets stored in the tissue of the next • Decomposers release the remaining energy as heat ...
... by plants in photosynthesis • Only 1-5% is used this way • The energy is then passed along the food as one organism eats another, flows in one direction • About 10% of the stored energy in a trophic level gets stored in the tissue of the next • Decomposers release the remaining energy as heat ...
Food webs Shows the complex network of feeding relationships and
... bears are carnivorous, starting with algae at the base of the salmon food chain. If a human eats the bear, then he/she is eating at 1 step higher in the food chain than the bear. ...
... bears are carnivorous, starting with algae at the base of the salmon food chain. If a human eats the bear, then he/she is eating at 1 step higher in the food chain than the bear. ...
Ecosystems
... • Decades ago, forest managers thought all fire was bad; • But this accumulated deadwood encourage insects and disease to attack trees; • And if a fire did occur, it was way worse because of all the accumulated tinder. • Different species have different tolerances to fire: • Grasses and pines tolera ...
... • Decades ago, forest managers thought all fire was bad; • But this accumulated deadwood encourage insects and disease to attack trees; • And if a fire did occur, it was way worse because of all the accumulated tinder. • Different species have different tolerances to fire: • Grasses and pines tolera ...
Big Ideas All animals play a certain role in their
... environment changes, some plants and animals survive and reproduce, while others die or move to new locations. (Consumers, decomposers, producers) ...
... environment changes, some plants and animals survive and reproduce, while others die or move to new locations. (Consumers, decomposers, producers) ...
Food web
A food web (or food cycle) is the natural interconnection of food chains and generally a graphical representation (usually an image) of what-eats-what in an ecological community. Another name for food web is a consumer-resource system. Ecologists can broadly lump all life forms into one of two categories called trophic levels: 1) the autotrophs, and 2) the heterotrophs. To maintain their bodies, grow, develop, and to reproduce, autotrophs produce organic matter from inorganic substances, including both minerals and gases such as carbon dioxide. These chemical reactions require energy, which mainly comes from the sun and largely by photosynthesis, although a very small amount comes from hydrothermal vents and hot springs. A gradient exists between trophic levels running from complete autotrophs that obtain their sole source of carbon from the atmosphere, to mixotrophs (such as carnivorous plants) that are autotrophic organisms that partially obtain organic matter from sources other than the atmosphere, and complete heterotrophs that must feed to obtain organic matter. The linkages in a food web illustrate the feeding pathways, such as where heterotrophs obtain organic matter by feeding on autotrophs and other heterotrophs. The food web is a simplified illustration of the various methods of feeding that links an ecosystem into a unified system of exchange. There are different kinds of feeding relations that can be roughly divided into herbivory, carnivory, scavenging and parasitism. Some of the organic matter eaten by heterotrophs, such as sugars, provides energy. Autotrophs and heterotrophs come in all sizes, from microscopic to many tonnes - from cyanobacteria to giant redwoods, and from viruses and bdellovibrio to blue whales.Charles Elton pioneered the concept of food cycles, food chains, and food size in his classical 1927 book ""Animal Ecology""; Elton's 'food cycle' was replaced by 'food web' in a subsequent ecological text. Elton organized species into functional groups, which was the basis for Raymond Lindeman's classic and landmark paper in 1942 on trophic dynamics. Lindeman emphasized the important role of decomposer organisms in a trophic system of classification. The notion of a food web has a historical foothold in the writings of Charles Darwin and his terminology, including an ""entangled bank"", ""web of life"", ""web of complex relations"", and in reference to the decomposition actions of earthworms he talked about ""the continued movement of the particles of earth"". Even earlier, in 1768 John Bruckner described nature as ""one continued web of life"".Food webs are limited representations of real ecosystems as they necessarily aggregate many species into trophic species, which are functional groups of species that have the same predators and prey in a food web. Ecologists use these simplifications in quantitative (or mathematical) models of trophic or consumer-resource systems dynamics. Using these models they can measure and test for generalized patterns in the structure of real food web networks. Ecologists have identified non-random properties in the topographic structure of food webs. Published examples that are used in meta analysis are of variable quality with omissions. However, the number of empirical studies on community webs is on the rise and the mathematical treatment of food webs using network theory had identified patterns that are common to all. Scaling laws, for example, predict a relationship between the topology of food web predator-prey linkages and levels of species richness.