Biology for SACE
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Biology for SACE
Year 11 and 12 Biology in South Australia
Curated by Scott Spargo
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Developmental plasticity is not Lamarckism

Developmental plasticity is not Lamarckism | Biology for SACE | Scoop.it
Sometimes, people email me with good questions. Here’s one. When I was a kid, my own visualization of evolution was Lamarckism. But I didn’t know it. In reading Dawkins and others, I know it doesn’t exist. But it seems this article is claiming it does to some extent. Can you comment? I’m curious as to…

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Scott Spargo's insight:

Selection, evolution, plasticity. A short video to get students talking about great moments in evolution and to consider the relationship between heritable characteristics, non-heritable characteristics and selection.

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jlinzel's curator insight, August 28, 2014 7:22 PM

This is an important and challenging distinction that students have trouble with. Heck, most adults do. Hence the triad of science understanding. Evolution! Development! Ecology!

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TimeTree :: The Timescale of Life

TimeTree :: The Timescale of Life | Biology for SACE | Scoop.it

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Sign in to read: Brain drain: Are we evolving stupidity? - life - 20 August 2014 - New Scientist

Sign in to read: Brain drain: Are we evolving stupidity? - life - 20 August 2014 - New Scientist | Biology for SACE | Scoop.it
Scott Spargo's insight:

Issues investigation

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Hints of epigenetic role in Alzheimer's disease - health - 17 August 2014 - New Scientist

Hints of epigenetic role in Alzheimer's disease - health - 17 August 2014 - New Scientist | Biology for SACE | Scoop.it
A group of genes whose expression was altered in people who died with Alzheimer's are found by two independent studies – they may play a role in the
Scott Spargo's insight:

Issues investigation potential.

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How bacteria "talk"

How bacteria "talk" | Biology for SACE | Scoop.it
Bonnie Bassler discovered that bacteria "talk" to each other, using a chemical language that lets them coordinate defense and mount attacks. The find has stunning implications for medicine, industry -- and our understanding of ourselves.
Scott Spargo's insight:

Great for Macromolecules and for Cells.

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Creating tiny human livers using stem cells

Creating tiny human livers using stem cells | Biology for SACE | Scoop.it
Japanese scientists have created small human livers from stem cells and transplanted them into mice. The transplanted livers were able to take on normal liver functions such as clearing toxins from the blood of the mice. This is believed to be the first successful generation of a functional organ from stem cells.
Scott Spargo's insight:

Issues investigation

Stem Cells

Differentiation

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How Leopards Helped Make the Fossil Record – Phenomena: Laelaps

How Leopards Helped Make the Fossil Record – Phenomena: Laelaps | Biology for SACE | Scoop.it
I have to apologize to carnivores. In an article about how to become a fossil, published last summer, I wrote that I wasn't enamored with the idea of being deposited in the fossil record as bone sc...
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There was no first human

There was no first human | Biology for SACE | Scoop.it
If you traced your family tree back 185 million generations, you wouldn't be looking at a human, a primate, or even a mammal. You'd be looking at a fish. So where along that line does the first human show up? The answer may surprise you.
Scott Spargo's insight:

Nice video nod to the magic of reality.

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Neglected Tropical Diseases

Neglected Tropical Diseases | Biology for SACE | Scoop.it
Médecins Sans Frontières has been actively engaged in the management and control of neglected tropical diseases including sleeping sickness, kala azar and Chagas disease.
Scott Spargo's insight:

Sleeping sickness - disease caused by protist parasites.

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Newborn mice can mend a broken heart - health - 24 February 2011 - New Scientist

Newborn mice can mend a broken heart - health - 24 February 2011 - New Scientist | Biology for SACE | Scoop.it
For the first time, mammals have been found repairing damaged heart tissue after birth...
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Classical music affects heart transplants - health - 23 March 2012 - New Scientist

Classical music affects heart transplants - health - 23 March 2012 - New Scientist | Biology for SACE | Scoop.it
Mice with heart swaps survived twice as long when they listened to classical rather than pop music after their operation...
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Experts be damned: World population will continue to rise

Experts be damned: World population will continue to rise | Biology for SACE | Scoop.it
New analysis finds that population will not level off in 21st century, as many had believed

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Scott Spargo's insight:

World population and carrying capacity are always good for issues. Interesting that the site claims this type of analysis has not been done before.

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jlinzel's curator insight, September 21, 2014 4:24 AM

Is it moral to allow the worlds population to reach this level? It both allows birth into squalor and suffering and threatens national and international security and stability. How do we regulate population? Women's rights? Equitable distribution of wealth, food, energy, water? This is the slooowww medical crisis. Ebola is/[was??]] the fast and we are responding. How do nation states respond to this crisis? 

 

 

Scott Spargo's comment, September 22, 2014 2:02 AM
"How do we regulate population?" - all the evidence suggests you educate women and provide easy access to contraception.
jlinzel's comment, September 22, 2014 9:44 AM
Wow! Comments. And they are productive. Thanks Scott :)
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Agriculture must engage in climate change discussion

Agriculture must engage in climate change discussion | Biology for SACE | Scoop.it
What is unacceptable is to arrogantly dismiss the projections.
Scott Spargo's insight:

Brief summary of that identifies that there are projections which predict possible impacts of climate change on agriculture and a list of some of the strategies that will need to be considered to cope with these impacts. Relates to the precautionary principle.

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New populations of rare species discovered

New populations of rare species discovered | Biology for SACE | Scoop.it
New populations of threatened native animals found after a survey of two islands in the Kimberley.
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Issues investigation

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Young blood to be used in ultimate rejuvenation trial - health - 20 August 2014 - New Scientist

Young blood to be used in ultimate rejuvenation trial - health - 20 August 2014 - New Scientist | Biology for SACE | Scoop.it
In California, people with Alzheimer's will be given transfusions of young blood to see if improves their cognition – there's good reason to hope it might
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Issues investigation material.

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The Evolution of Diet

The Evolution of Diet | Biology for SACE | Scoop.it
Could eating like our ancestors make us healthier?
Scott Spargo's insight:

Possible Investigation topic.

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What humans can learn from semi-intelligent slime

What humans can learn from semi-intelligent slime | Biology for SACE | Scoop.it
Inspired by biological design and self-organizing systems, artist Heather Barnett co-creates with physarum polycephalum, a eukaryotic microorganism that lives in cool, moist areas. What can people learn from the semi-intelligent slime mold? Watch this talk to find out.
Scott Spargo's insight:

Relevant to Cells, a eukaryotic organism which beautifully illustrates response to stimuli in unicellular organisms, to the point where they exhibit behaviour usually thought to require intelligence. Highly recommended - potential for research projects and issues investigations.

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New general concept for treatment of cancer

New general concept for treatment of cancer | Biology for SACE | Scoop.it
A team of researchers from five Swedish universities has identified a new way of treating cancer. The concept is based on inhibiting a specific enzyme called MTH1, which cancer cells, unlike normal cells, require for survival. Without this enzyme, oxidized nucleotides are incorporated into DNA, resulting in lethal DNA double-strand breaks in cancer cells.
Scott Spargo's insight:

Sounds too good to be true - a golden bullet?

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What is Alzheimer's disease? - Ivan Seah Yu Jun

What is Alzheimer's disease? - Ivan Seah Yu Jun | Biology for SACE | Scoop.it
Alzheimer's disease is the most common cause of dementia, affecting over 40 million people worldwide. And though it was discovered over a century ago, scientists are still grappling for a cure. Ivan Seah Yu Jun describes how Alzheimer's affects the brain, shedding light on the different stages of this complicated, destructive disease.
Scott Spargo's insight:

Possible issues investigation

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Should we redesign humans?

Should we redesign humans? | Biology for SACE | Scoop.it
The age of bioengineering is upon us, with scientists' understanding of how to engineer cells, tissues and organs improving at a rapid pace. Here, how this could affect the future of our physical bodies.
Scott Spargo's insight:

Great for Issues Investigations

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Heart-stopping drugs reduce surgery risks - 18 September 2003 - New Scientist

Heart-stopping drugs reduce surgery risks - 18 September 2003 - New Scientist | Biology for SACE | Scoop.it
A new way of halting the heart during bypass operations could cut damage to the heart and improve patients' chances of a full recovery...
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