Ecological Equilibrium

The balance of nature theory proposes that ecological systems are usually in a stable equilibrium or homeostasis.

The balance is depicted as both easily disturbed and delicate, as well as powerful enough to correct any imbalances by itself.

The balance of nature theory is described as normative because it makes a claim about how nature should be: balanced.

<p>The theory can be applied to describe how populations depend on each other, such as in predator-prey systems or relationships between herbivores and their food source.</p> Signup and view all the answers

<p>The balance of nature theory is sometimes applied to describe the relationship between the Earth's ecosystem and its components.</p> Signup and view all the answers

<p>To determine the performance, yield, and effects of nuclear weapons.</p> Signup and view all the answers

<p>Information about how the weapons function, how detonations are affected by different conditions, and how personnel, structures, and equipment are affected when subjected to nuclear explosions.</p> Signup and view all the answers

<p>Because many tests have been overtly political in their intention and most nuclear weapons states publicly declared their nuclear status through a nuclear test.</p> Signup and view all the answers

<p>The first nuclear device was detonated at the Trinity site in New Mexico on July 16, 1945.</p> Signup and view all the answers

<p>The first thermonuclear weapon technology test of an engineered device, codenamed 'Ivy Mike', was tested at the Enewetak Atoll in the Marshall Islands on November 1, 1952 (local date), by the United States.</p> Signup and view all the answers

<p>Nutrition = The biochemical and physiological process by which an organism uses food to support its life Nutritional science = The study of nutrition, typically emphasizing human nutrition Malnutrition = Failure to obtain sufficient nutrients Organic matter = What organisms consume to obtain nutrients</p> Signup and view all the answers

<p>Certain organisms = Can produce nutrients internally by consuming basic elements Some organisms = Must consume other organisms to obtain pre-existing nutrients Animals = Require complex nutrients such as carbohydrates, lipids, and proteins, obtaining them by consuming other organisms Humans = Have developed agriculture and cooking to replace foraging</p> Signup and view all the answers

<p>Carbon, energy, and water = All forms of life Complex nutrients such as carbohydrates, lipids, and proteins = Animals Organic or inorganic matter, or light = Organisms depending on their type Agriculture and cooking = Humans</p> Signup and view all the answers

<p>Nutrition = Provides organisms with nutrients, which can be metabolized to create energy and chemical structures Malnutrition = Caused by failure to obtain sufficient nutrients Organic matter = Consumed by organisms to obtain nutrients Nutritional science = Typically emphasizes human nutrition</p> Signup and view all the answers

<p>Carbon, energy, and water = All forms of life Carbohydrates, lipids, and proteins = Animals Organic or inorganic matter, or light = Organisms depending on their type Basic elements = Certain organisms that can produce nutrients internally</p> Signup and view all the answers