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Browse through our recently updated questions and discussion topics.
Salty foods
Salty foods
A person who loves to eat salty foods is caught in a potato chip factory overnight.  After eating his way thru the Pringles, he realized that his undoing is soon to come as there is no water anywhere to be found.  Explain what is happening inside his blood with the plasma (the fluid component of the blood) and the blood cells (RBCs and WBCs). Be sure to identify the solute
Cell Biology   Esterchilds   746   13 years ago
Histology
Histology
A. Name the epithelium.
B. Where is it found?
C. The shape of this epithelium has a lot to do with its functionality – please explain
briefly.
Cell Biology   tat3rka   843   13 years ago
Histology
Histology
The three circular structures in this image are often found together.
A. Name the structure indicated by the “A” – be specific.
B. Name the structure indicated by the “B”
C. Why are these structures often found together?
Cell Biology   tat3rka   786   13 years ago
Histology
Histology
A. Name the gland indicated by the “A”.
B. Name the gland indicated by the “B”
C. What is the function of gland “A”?
Cell Biology   tat3rka   754   13 years ago
[Animation] - Interactive Mitosis
[Animation] - Interactive Mitosis
<a rel="nofollow" href="https://http://www.edumedia-sciences.com/en/fl/70/9247-37077d059b8cdfe2f65eb11795e832a3" target="_blank">https://http://www.edumedia-sciences.com/en/fl/70/9247-37077d059b8cdfe2f65eb11795e832a3</a>
Other   bio_man   847   13 years ago
Pearson Biology 7th Edition
Pearson Biology 7th Edition
Answers are attached Slight Smile

1. greatest likelihood of fossilization in sedimentary rock?

I. The species was abundant.
II. The species was widespread.
III. The species had hard body parts.
IV. The species was adapted to desert life.
V. The species had a long duration in geologic time.
A) III only
B) III and IV
C) I, II, and III
Test Banks   biolove   14148   13 years ago
Neutral evaluation within and between populations -2 ?
Neutral evaluation within and between populations -2 ?
hey :-)  following the next table
36 81 93 177 342 402 714
Human 1 GUA ACC GUA AUA CCG AGC CGG
Human 2 GCA ACC GUU AUA CCA AGC CGG
Human 3 GUA ACA GUA AUG CCA AGC CGA
Human 4 GUA ACA GUA AUG CCA AGU CGA

1. the all synonymous locus is 3000 , in the table theirs 4 synonymous codes from the 3000 synonymous sites in the locus . if we know that th
Other   asaf   959   13 years ago
another opoinion
another opoinion
hey please answer somone that realy help :
right or wrong question :
1.when homozygous has an advantage on Heterozygous  :
the most widespread ourcome is that the common allele (withe a frequency above 50%) willtake over  the population ?
2.the genteic variation fade away ?
.whenHeterozygous   has an advantage on  homozygous:
1 the e
Other   asaf   664   13 years ago
Gene therapy cures monkeys of laziness
Gene therapy cures monkeys of laziness
Gene therapy cures monkeys of laziness


Procrastinating primates can be turned into workaholics, thanks to gene therapy. The discovery, which sheds light on the workings of the brain's reward centre, may further our understanding of mood disorders, such as depression and obsessive-compulsive disorder.

Like many huma
News Articles and Discussion   bio_man   889   13 years ago
Membrane Proteins
Membrane Proteins
You come across a membrane protein that has been determined to be involved with the passive transport process.
A gene has been identified for the protein however you are unable to develop any structural information about this protein by crystallography, CD or NMR.

1. Of the two types of structures that are associated with membrane proteins, which would you presume
Biochemistry   swimmer052005   892   13 years ago
Cell Signal and Cell Cycle
Cell Signal and Cell Cycle
Hey everyone, please help a poor struggling student out Frowning Face could you help me with an explanation with why the answers are correct. Thank you so much Slight Smile

Q. Which is true of transcription factors?
A. They control which genes are turned on to form mRNA

Q. Chemical signal pathways...
A. Often involve the binding of signal molecules to a protein on the su
High School Level Science   patsfan22   4801   13 years ago
Parameters affecting adaptation scenarios
Parameters affecting adaptation scenarios
. Parameters affecting adaptation scenarios

If we think of adaptation as an adjustment and environmental changes, we have seen that adaptive mutation can occur as a result of two scenarios - different from the population there was no prior adaptive change, or from a new mutation that appeared after the change.

A.. What situation has had more different from the
Other   asaf   818   13 years ago
Cell Signalling
Cell Signalling
I have some true/false questions. If anyone can answer them or a subset of them, that would be amazing, and I really appreciate it! Thank you:

a) Calmodulin is calcium  response-mediating protein.
b) G proteins can "self-inactivate" by hydrolyzing the bound GTP.
c) Protein kinase A binds cAMP.
d) Dimerization of receptor tyrosine kinases acti
Cell Biology   sgbrand   751   13 years ago
8-Year-Olds Publish Article in Respected Biology Journal
8-Year-Olds Publish Article in Respected Biology Journal
A class project about bees prepared by a group of British schoolchildren was published in a leading scientific journal Wednesday.

The 25 students -- aged between eight and 10 -- studied how bees see color and patterns for a class project at Blackawton Primary School in southwestern England.

‘We discovered that bumble-bees can use a combin
News Articles and Discussion   bio_man   1057   13 years ago
Genetic Mutation May Lead to Violent and Reckless Behavior
Genetic Mutation May Lead to Violent and Reckless Behavior
In a discovery that could help scientists further understand impulsivity in humans, researchers have announced they found a genetic variant that may contribute to spontaneous violent behavior.

In a new study released in the journal Nature, a multinational research team examined the genes of 96 violent criminal offenders in Finland with behavioral disorders and compared i
News Articles and Discussion   bio_man   1206   13 years ago
Probiotic natural health product over undeclared dairy, says Health Canada
Probiotic natural health product over undeclared dairy, says Health Canada
Probiotic natural health product over undeclared dairy, says Health Canada

OTTAWA - Health Canada says a probiotic natural health product is being recalled because it could contain trace amounts of dairy not declared on the labels.

It says the oral capsules — Cultures de Yogourt 2 Milliards (NPN 80013273), from the company Bio-Dis
News Articles and Discussion   bio_man   948   13 years ago
What's the best solution for hair loss?
What's the best solution for hair loss?
THE two most commonly known medications for slowing down balding are Minoxidil lotion (Regaine or Rogaine), drops of which are rubbed into the scalp twice daily and Finasteride tablets (trade name Propecia), which are taken once daily.

The lotion can be purchased over the counter but the tablets require a script. Both only work as long as you
News Articles and Discussion   bio_man   832   13 years ago
Animation: Kidney
Animation: Kidney
<a rel="nofollow" href="https://http://www.biologymad.com/resources/kidney.swf" target="_blank">https://http://www.biologymad.com/resources/kidney.swf</a>
Other   bio_man   958   13 years ago
What is an Enzyme?
What is an Enzyme?
<a rel="nofollow" href="https://http://www.northland.cc.mn.us/biology/biology1111/animations/enzyme.swf" target="_blank">https://http://www.northland.cc.mn.us/biology/biology1111/animations/enzyme.swf</a>
Other   biolove   897   13 years ago
Animation - Electron Transport Chain
Animation - Electron Transport Chain
<a rel="nofollow" href="https://http://www.sumanasinc.com/webcontent/animations/content/electrontransport.swf" target="_blank">https://http://www.sumanasinc.com/webcontent/animations/content/electrontransport.swf</a>
Other   bio_man   1081   13 years ago
How BOTOX Works (Wrinkles)
How BOTOX Works (Wrinkles)
<a rel="nofollow" href="https://http://illumin.usc.edu/multimedia/6ii_132_botox.swf" target="_blank">https://http://illumin.usc.edu/multimedia/6ii_132_botox.swf</a>
Other   bio_man   1461   13 years ago
Eye muscles oculocephalic reflex, control of eye muscles
Eye muscles oculocephalic reflex, control of eye muscles
Eye muscles oculocephalic reflex, control of eye muscles

<a rel="nofollow" href="https://http://library.med.utah.edu/kw/animations/hyperbrain/oculo_reflex/oculocephalic2.swf" target="_blank">https://http://library.med.utah.edu/kw/animations/hyperbrain/oculo_reflex/oculocephalic2.swf</a>
Other   bio_man   1247   13 years ago
Mechanism of Muscle Contraction
Mechanism of Muscle Contraction
<a rel="nofollow" href="https://http://www.ilearnscience.co.in/images/Rio1.swf" target="_blank">https://http://www.ilearnscience.co.in/images/Rio1.swf</a>
Other   bio_man   1317   13 years ago
IRAQ: Christian IDPs find refuge in Kurdish north
IRAQ: Christian IDPs find refuge in Kurdish north
IRAQ: Christian IDPs find refuge in Kurdish north


ANKAWA, 23 December 2010 (IRIN) – Hundreds of Iraqi Christians are fleeing to the northern semi-autonomous Kurdish region and particularly the town of Ankawa, which has become a safe haven for the country’s Christians, thanks to its s
Off-Topic Room   sarah   1312   13 years ago
campbell biology 8th edition Chapter 7 Test bank
campbell biology 8th edition Chapter 7 Test bank
Answers are attached
Enjoy Slight Smile

Biology, 8e (Campbell)
Chapter 7  

Membrane Structure and Function

Multiple-Choice Questions

1) Who was/were the first to propose that cell membranes are phospholipid bilayers?
A) H. Davson and J. Danielli
B) I. Langmuir
C) C. Overton
D) S. Singer and
Test Banks   biolove   41697   13 years ago
Mount Sinai Researchers Develop Mouse Model To Help Find How A Gene Mutation Lea
Mount Sinai Researchers Develop Mouse Model To Help Find How A Gene Mutation Lea
Mount Sinai Researchers Develop Mouse Model To Help Find How A Gene Mutation Leads To Autism

Researchers from Mount Sinai School of Medicine have found that when one copy of the SHANK3 gene in mice is missing, nerve cells do not effectively communicate and do not show cellular properties associated with no
News Articles and Discussion   biolove   1004   13 years ago
campbell biology 7th edition Chapter 29 Questions
campbell biology 7th edition Chapter 29 Questions

Which of the following is not evidence that charophyceans are the closest algal relatives of plants?

Your Answer:
similarities in cell wall formation during cell division   
Correct Answer:
similar cell wall structure 
--------------------------------------------------------------------------------
2.
Which of the following c
Free Notes   duddy   10273   13 years ago
HIV drugs, Abacavir and Didanosine increase the risk of heart attack
HIV drugs, Abacavir and Didanosine increase the risk of heart attack
HIV drugs, Abacavir and Didanosine increase the risk of heart attack


A study to assess the adverse effects of anti-retroviral drugs shows that two widely-used HIV drugs are associated with an increased risk of heart attack/the formation of blood clots in the heart. With the use of Didanosi
News Articles and Discussion   bio_man   857   13 years ago
Non-toxic chemical turned B.C. river green
Non-toxic chemical turned B.C. river green
Non-toxic chemical turned B.C. river green




When a stretch of the Goldstream River on Vancouver Island unexpectedly turned neon green last week, res
News Articles and Discussion   bio_man   1090   13 years ago
Life on Other Plants? Living on Mars
Life on Other Plants? Living on Mars
Living on Mars is a National Geographic production documentary dealing with the possibilities of making Mars more hospitable to humans, thus terraforming it.

“On the surface, the red planet’s freeze-dried world of rocks, ice, and dust looks like an unlikely place to plant a garden. But rocks and minerals found by the Mars rovers show it must once have had warm
News Articles and Discussion   bio_man   906   13 years ago
David Eagleman - The Brain and The Law
David Eagleman - The Brain and The Law
The Unconscious Part Of Your Brain Is The Real Main Decision-Maker.

The Role Of Consciousness Has Been Hugely Exaggerated, Ill Defined And Largely Misunderstood

News Articles and Discussion   bio_man   901   13 years ago
Using Light To Control Brains
Using Light To Control Brains
This video shows how scientists can control the behaviour of cells simply by switching on a light. The technique, known as optogenetics, is teaching us about everything from how we wake up to how we learn. That's why Nature Methods has named optogenetics as its Method of the Year 2010.

News Articles and Discussion   biolove   829   13 years ago
Chapter 10 Genetics Notes. Based on Brooker, 6th edition
Chapter 10 Genetics Notes. Based on Brooker, 6th edition
Chapter 10 Genetics Notes. Based on Brooker, 6th edition
Other   shahindian2009   1752   13 years ago
Chapter 13 Brooker Genetics Notes
Chapter 13 Brooker Genetics Notes
Chapter 13 Brooker Genetics Notes
Other   shahindian2009   1959   13 years ago
Kingdom Plantae
Kingdom Plantae
Kingdom Plantae

Botany - study of plants
Characteristics
autotrophs, some are both heterotrophic & autotrophic
ex. Venus Flytrap
multicellular
eukaryotic (has a nucleus and membrane-bound organelles)
sexual reproduction (2 haploid cells [gametes] => 1 diploid [zygote])
sessile (can't move)
Plants are put into grou
Other   biolove   1787   13 years ago
Question 4-Analysis of calcium carbonate tablets
Question 4-Analysis of calcium carbonate tablets
How do you work out question 4 ? My answer is wrong as it is and I need some1 to show me how to solve the problem?
Other   Princess   1276   13 years ago
bio
bio
                                                                                          "Organizing Life's Diversity"       
News Articles and Discussion   mountain1996   1156   13 years ago
Tracking the tell-tale signs of pure genius
Tracking the tell-tale signs of pure genius
Tracking the tell-tale signs of pure genius

A leading neuroscientist on the intriguing case studies that are revealing the powerful, adaptive potential of the human brain




A 70-year-old
News Articles and Discussion   bio_man   1493   13 years ago
Genes may play role in friends we choose, says study
Genes may play role in friends we choose, says study
Genes may play role in friends we choose, says study

By Neil Bowdler



Researchers in the United States say they have uncovered tentative evidence of a genetic component to friendshi
News Articles and Discussion   bio_man   973   13 years ago
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