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Difference between fraternal and identical twins
By: saima
When you hear the words twin the first thing that comes to the mind is how will you tell them apart? What if you feed or bathe the same one twice? What to do if both kids start crying together? Everyone assumes that if its...
How scientists classify organisms
By: Sharon Agun
From the time of the first humans, classification of organisms has been a useful, even necessary tool. Primitive classification schemes sorted things into simple, utilitarian categories: edible and inedible, dinner for you and you are dinner for it, dangerous and safe.Modern western science continues...
Identifying euglena in water
By: Sandra Petersen
If you see a marine or freshwater pool with algae growing in it, you are bound to find Euglena specimens there as well. Because euglenids are single-celled organisms, you cannot see them by just looking unless there are thousands or millions of them. To see...
Is the Human Race Evolving or Devolving
By: Susan Cronk
Is society evolving or devolving? H.G. Wells set out to answer this same question in the late 1800s with his book The Time Machine. This movie played on TCM the other night and I found myself watching it in a new way, from the...
Why do people breathe?
By: Tami Port MS
Breathing is essential to life. Yet most of us don't even give a thought to our respiration. Why is it that people need to take in oxygen and expel carbon dioxide? The answer relates to how we extract energy from the food we eat, an...
By: Paul Arnold
Ever since humans realized what a wonderful planet this can be countless attempts have been made to keep us on it for as long as possible. For generations scientists, seers and sages would create lotions, potions and formulas they believed would give the drinker immortality...
Is the Human Race Evolving or Devolving
By: Tom Brend
If we look into nature, there are plenty of hints for "general" evolution, not devolution. In fact, the very process of evolution is essential for linking several sub-fields of biology together: We acknowledge our DNA is a product of evolution, and we cannot help but...
Why menthol feels 'cool' and spicy foods feel 'hot'
By: Rex Trulove
The sensation of cool and hot after ingesting certain foods or substances really isn't an illusion. However, the cause is more biological than it is chemical. This is the reason some people feel varying degrees of coolness or heat. Mint has long been used as...
By: Stephanie Happ
The short answer to why viruses are referred to as obligate parasites is that they cannot reproduce outside their host. Some authorities employ the word 'grow' for reproduce. Both terms bear the limitations of both English and current scientific understanding. Viruses don't have reproductive systems...
Pregnant Men
By: Morgan Carlson
Sure, why not? It isn't exactly my thing, but who am I to tell someone what to do? By all means, if that gender allowance will advance other potential advancements in medicine and biological science, I'm all for it. So what is the real issue...

 

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