'Low oxygen concentrations' diaporamas de présentation

Variation 2

1. Variation 2. Sources of variation. Sources of heritable variation. 2. There are two principal ways in which heritable variations can be acquired. Independent assortment of genes. Mutation. Independent assortment of genes. 3. Independent assortment arises as a result of meiosis

678 views • 40 slides

Aquatic Ecosystems

Aquatic Ecosystems. Aquatic Ecosystems. The major kinds of aquatic environments are streams and rivers, lakes, wetlands, estuaries, and oceans. Each of these can be subdivided further with respect to many factors. . Aquatic Ecosystems.

797 views • 38 slides

Bacteria Oxygen Requirements

Bacteria Oxygen Requirements. Bacterial requirements for growth. Source of energy Source of "organic" carbon sugars fatty acids Source of metal ions (e.g. iron) Optimal temperature Optimal pH The need or lack of need for oxygen. Oxygen Both useful and harmful

694 views • 34 slides

Whole Effluent Toxicity

744 views • 32 slides

US Chemical Safety and Hazard Investigation Board

The Hazards of Nitrogen Asphyxiation. US Chemical Safety and Hazard Investigation Board. Introduction. Nitrogen makes up 78% of the air we breath; because of this it is often assumed that nitrogen is not hazardous.

527 views • 24 slides

Eutrophication comparisons between Chesapeake Bay and Puget Sound

Eutrophication comparisons between Chesapeake Bay and Puget Sound. Tiffany Huang Oceanography 497 B School of Aquatics and Fisheries. Eutrophication Background. A n ecosystem response to human activities that fertilize bodies of water with N and P.

329 views • 12 slides