forests is used to create products in our everyday lives, including furniture, paper, and kitchen cabinets. But while wood is a renewable resource, many logging activities in the tropics are done without regard to the forest ecosystem. Over time this can limit the forests' ability to regrow, leading to...
3. The average climate—annual precipitation and temperature—determines terrestrial regions with characteristic types of natural ecological communities. According to these two factors, biomes form.
4. The major types of desert biomes are hot, medium, and cold. Human activities...
Identify a naturalecosystem in whichyoulive or onenear to whereyoulive? Howdoesthisecosystemsupportyou? At what trophic level are you? Why?
An ecosystem (2011), according to Merriam Webster Learners Dictionary, is everything that exists in a particular environment. An ecosystem includes...
Threats to Biodiversity
Extinction is a natural event and, from a geological perspective, routine. We now know that most species that have ever lived have gone extinct. The average rate over the past 200 million years is 1-2 species per million species present per year. The average duration of a...
animal both to its inorganic and its organic environment; including, above all, its friendly and inimical relations with those animals and plants with which it comes directly or indirectly into contact – in a word, ecology is the study of all those complex interrelationships referred to by Darwin as the...
An estuary mouth and coastal waters, part of an aquatic ecosystem.
An aquatic ecosystem is an ecosystem located in a body of water. Communities of organisms that are dependent on each other and on their environment live in aquatic ecosystems. The two main types of aquatic ecosystems...
due to the fact that we use too much resources, reuse too little of them and produce too much waste. There are four factors that have contributed to this situation: human activites such as agriculture and industry, population explosion, technological advances and modern lifestyle.
Human activities like...
ecological hierarchy chart below. Different levels of ecological study (1149)
Ecological Level | Description | Example |
Organismal | Organismal ecology includes the subdisciplines of psychological, evolutionary, and behavioral ecology, is concerned with how an organisms structure, physiology and (for...
Almost every one of us have heard and most of you have seen the Coral reefs but did you know what actually these are:
As a mariner its important to know about the marine life, that was one reason I have chosen this topic for my today's short presentation.
GM, my scheme of presentation...
B.4.1 Limiting factors.
4.5.1 Discuss the factors that affect aquatic
THINK ABOUT IT We call our planet “Earth,” yet nearly threefourths of Earth’s surface is covered with water. Despite the vital roles
aquatic ecosystems play in the biosphere...
mankind as a whole to have a clear understanding of environmental concerns and to follow sustainable development practices. India is rich in biodiversity which provides various resources for people. It is also basis for biotechnology.
Only about 1.7 million living organisms have been diescribed and named...
Mir - Black
Imam - Red
Halema - Blue
Hi guys. This is Mir’s part of the lecture notes, so i’ll type everything here.
One of the things that influences the climates around the earth is that you have warm air moving across oceans. Warm air moves across these bodies...
Ecosystems: What Are They and How Do They Work
1.Ecology is the study of connections in nature.
2.Life on earth is sustained by the one-way flow of high-quality energy from the sun, by the cycling of matter, and by gravity.
3.Matter, energy, and life are the major...
Ecology – the study of the many interactions in the world around us
- body of knowledge concerning the economy of nature, investigation of the total relations of the animal both to its biotic and abiotic environment
- concept developed by Ernst Haeckel in 1900s
- The study of the...
Year 11 Biology
8.2 A Local Ecosystem
Focus Area 2
A Local Ecosystem: Focus 2 – Contents
1. Trends in Population Estimates
2. Predator- Prey Populations
An ecosystem consists of all the organisms living in a particular area, as well as all the nonliving, physical components of the environment with which the organisms interact, such as air, soil, water, and sunlight. It is all the organisms in a given...
Use the following questions to take notes.
Chapter 1 Guided Notes
1. Why do Biology courses build their content around themes and major concepts?
2. Diagram the hierarchy of structural levels in biology.
3. Explain how the properties of life emerge from complex organization.
4. Describe the...
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Global Warming and Acid Rain
The phrase Global Warming has become familiar to many people as one of the important environmental issues of our day. Many views have been expressed concerning it, from the doom-laden to the dismissive.
There is little debate that the earth is undoubtedly...
For Undergraduate Courses of all Branches of Higher Education
University Grants Commission
4/9/2004, 5:06 PM
Credits Principal author and editor – Erach Bharucha Unit 1 – Erach Bharucha...