Neuroscience

To better understand the brain, look at the bigger picture

Researchers have learned a lot about the human brain through functional magnetic resonance imaging (fMRI), a technique that can yield insight into brain function. But typical fMRI methods may be missing key information and ...

Diseases, Conditions, Syndromes

Uptick in avian flu cases poses little threat to humans

If the recent increase in avian influenza cases has you concerned, you likely have nothing to worry about and don't need to take any added measures, according to a University of Alberta expert on influenza in birds.

Other

Health risk due to micro- and nanoplastics in food

Five grams of plastic particles on average enter the human gastrointestinal tract per person per week. This is roughly equivalent to the weight of a credit card. Whether ingested micro- and nanoplastics pose a health risk ...

Diseases, Conditions, Syndromes

Australians managing COVID risks 'on their own'

Australia is entering a new phase in the pandemic where we are managing more risks on our own, according to a new report by experts at The Australian National University (ANU).

Diseases, Conditions, Syndromes

Australia's New South Wales sees deadliest day of pandemic

Australia's New South Wales state reported 16 deaths on Sunday in its deadliest day of the pandemic, even as it relaxed rules to allow some essential workers in isolation to return to work if they are asymptomatic.

Diseases, Conditions, Syndromes

'Stock up', China says, amid new COVID outbreak

China's government has urged citizens to stock up on daily necessities and for authorities to take steps to ensure adequate food supplies as the country adopts increasingly tight measures to contain its latest COVID outbreak.

Diseases, Conditions, Syndromes

COVID origins report: the four theories in play

The COVID-19 pandemic origins report looked into four hypotheses as to how the virus entered the human species, ranking them from the most to the least likely.

Health

Seven healthy strategies to navigate a food swamp

On nearly every corner, and along the roads in between, the familiar signs comfort and tempt us: burgers and fried chicken, ice cream and doughnuts, sweets and treats galore.

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Food chain

Food chains, also called food webs, describe the eating relationships between species within an ecosystem or a particular living place. Many types of food chains or webs are applicable depending on habitat or environmental factors.

Organisms are connected to the organisms they consume by lines representing the direction of organism or energy transfer. It also shows how the energy from the producer is given to the consumer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.

Sometimes, on a food chain, each animal is separated with an arrow. If it is pointing right, it means "is eaten by" or "is consumed by".

Every single food chain known to Man begins with a type of autotroph, whether it be a plant or some kind of unicellular organism.

This text uses material from Wikipedia, licensed under CC BY-SA