Tag «Student»

Ecological Pyramids | Biology for All | FuseSchool

Ecological Pyramids | Biology for All | FuseSchool

Ecological Pyramids are diagrams used to display Quantitative data and show the relationship between organisms in an ecosystem. They are made up of bars stacked on top of one another. They can be used to show numbers of organisms or biomass of each trophic level in ecosystem. They visually describe the quantities that we see …

Biomagnification and the Trouble with Toxins

Biomagnification and the Trouble with Toxins

Captions are on! To turn off, click CC button at bottom right. Follow us on Twitter (@AmoebaSisters) and Facebook! Have you ever heard the song “Big Yellow Taxi?” It’s one of our favorites. It was originally written and recorded by Joni Mitchell back in the seventies, and there are lots of singers who have their …

Acid Rain | Sulphuric Acid Rain

Acid Rain | Sulphuric Acid Rain

The eastern United States receives more acidic precipitation than the rest of the country with the greatest rates occurring in Ohio, West Virginia, western Pennsylvania, upstate New York New England, and other northeastern areas. Because nitrogen compounds can remain stored in snow until it melts nitrate concentrations in lakes and streams can increase dramatically during …

What Is Eutrophication | Biology for All | FuseSchool

What Is Eutrophication | Biology for All | FuseSchool

Eutrophication is the process that can happen in a water body, like a river or a lake, when too many nutrients are added to the system. Eutrophication starts with fertilizers, which are rich in nutrients like nitrate and phosphate, are washed into the river or lake system. This leads to an increase in nutrient concentrations …

How do fish breathe underwater? | #aumsum

How do fish breathe underwater? | #aumsum

How do fish breathe underwater? With the help of oxygen cylinders and masks. No Fish breathe underwater using the oxygen that is dissolved in water. So, do they use a mini vacuum cleaner to absorb oxygen from water? No. To absorb oxygen from water, fish use special organs called gills. Gills are full of blood …

Emily Meineke: Scaling up research on tiny pest

Emily Meineke: Scaling up research on tiny pest

>>EMILY MEINEKE: Scale insects are plant parasites. They are pretty small, and they drink plant juices. They are everywhere, and they are on all different kinds of plants. But normally people don’t see them because they just sit on plants and they don’t move around. They occur in urban areas a lot more than they …