Other

B Vitamins Animation Video

B Vitamins Animation Video

http://www.learn.ppdictionary.com/resources/b_vitamins_final.htm

or...

bio_man   2187   N/A

bio_man

What's the relationship between smoking and low birth weight?

What's the relationship between smoking and low birth weight?

I have a nutrient question: the relationship between smoking and low birth weight?

The only thing I can think of is that nicotine and cyanide in cigarettes are toxic to the fetus, any one want to elaborate?

barry   3196   2 Replies

wonderworld

HIV / AIDS Replication Animation Video

HIV / AIDS Replication Animation Video

http://www.ppdictionary.com/tutorials/HIV_replication.htm

or...

bio_man   1919   1 Reply

ThePsychic

Bacterial Spore Formation

Bacterial Spore Formation

Bacterial Spore Formation

http://ppdictionary.com/tutorials/bacterial_spore_formation.htm

or...

[url=http://www.youtube.com/watch?v=NA

bio_man   2361   N/A

bio_man

Active Transport by Group Translocation

Active Transport by Group Translocation

Animation on Active Transport by Group Translocation

http://ppdictionary.com/tutorials/active_transport.htm

Biology Forums   3140   N/A

Biology Forums

Electron Transport System and ATP Formation

Electron Transport System and ATP Formation

Animation on Electron Transport System and ATP Formation

http://ppdictionary.com/tutorials/electron_transport.htm

Biology Forums   1622   N/A

Biology Forums

Describe the mode of action of action of the drug reserpine. What type of protein does it bind and

Describe the mode of action of action of the drug reserpine. What type of protein does it bind and

Describe the mode of action of action of the drug reserpine.  What type of protein does it bind and what is the overall effect of the drug on neurons?

help

padre   1932   1 Reply

bio_man

How to make a Hybridoma!

How to make a Hybridoma!

So I've decided to make a brief tutorial on how to make a hybridoma. Here we go:

Hybridomas are  products of cell fusion between spleen B cells (from an immunized animal) and myeloma cells (cancerous B cells). They prolife

padre   3478   1 Reply

ppk

List the four categories of evidence for evolution and briefly describe each one.

List the four categories of evidence for evolution and briefly describe each one.

I'm doing an ISU on evolution, I need some help with this question...

List the four categories of evidence for evolution and briefly describe each one.

sarah!   1733   2 Replies

sarah!

A-B Toxin

A-B Toxin

bio_man   1392   N/A

bio_man

Protein Synthesis Animation Video

Protein Synthesis Animation Video

bio_man   2326   N/A

bio_man

Blood Sugar Regulation in Diabetics

Blood Sugar Regulation in Diabetics

germ   1429   1 Reply

Ame

What are the different types of scientific articles?

What are the different types of scientific articles?

What are the different types of scientific articles?

Research articles form the “core” of scientific literature – these are the articles written to present findings in specific areas, and are often targeted toward a specific audience of ot

Biology Forums   3830   N/A

Biology Forums

Cell Biology Animations

Cell Biology Animations

An amazing set of links (animations) related to cell biology:

http://www.johnkyrk.com/

Biology Forums   1455   N/A

Biology Forums

chemestry

chemestry

how does chemicals affect the environment

vjae   1177   1 Reply

bio_man

Isotonic saline and 5% dextrose in water are solutions that are considered Isotonic to human blood. ...

Isotonic saline and 5% dextrose in water are solutions that are considered Isotonic to human blood. ...

Isotonic saline and 5% dextrose in water are solutions that are considered Isotonic to human blood. What effect on red blood cells would you expect if a patient were given these fluids in an IV? A solution of 10% dextrose in water is hypertonic to bl

brinkleyracing   11949   1 Reply

karim89

Drug Diffussion in Blood

Drug Diffussion in Blood

2 Drugs are injected into the same thigh muscle. Drug A is body temp (37 degrees C) and has a molecular weight of 150 g/mol. Drug B has been in the fridge (5 degree C) and has a molecular weight of 600 g/mol. Which drug will diffuse into the blood mo

brinkleyracing   10094   5 Replies

Biology Forums

Why is an alkyl halide more reactive in an E2 reaction than a vinylic halide?

Why is an alkyl halide more reactive in an E2 reaction than a vinylic halide?

why is an alkyl halide more reactive in an E2 reaction than a vinylic halide.. i was thinking that since the carbon is sp2 thus more electronegative then the bond between the hydrogen and the sp2 carbon would be easier to break.. and since in an E2 r

karim89   4115   12 Replies

karim89

Excellent Animation on Cancer

Excellent Animation on Cancer

http://wps.prenhall.com/wps/media/objects/838/858549/ch05anim/5_1_2_1a.swf


[flash=200,200]http://wps.prenhall.com/wps/media/objects/838/858549/ch05

bio_man   1217   N/A

bio_man

A list of reason why human body ages and die

A list of reason why human body ages and die

I would love to have a full list of reasons why human body ages and most important die.
For example the oxygen which we use for energy "burns" us.
I read a article about that when cell reproduce , it leaves a "error"&nbs

Konstantine   2747   6 Replies

duddy

sugar solubility

sugar solubility

can anyone tell me how the solubility of different sugars ( glucose , galatose and lactose ) relate to the use of these sugars in humans ?

urgent ....

thz..

( may be give me some useful websites for reference ..)

yanyan2040   7815   3 Replies

bio_man

Mycology-plasmocarp

Mycology-plasmocarp

what is plasmocarp? I have looked in all my texts and on the internet and I still can not find an answer.
also, what is a definition of secondary zoospores?

 

megonigalc   1158   2 Replies

bio_man

Enzyme Inhibitor Animation

Enzyme Inhibitor Animation

Excellent Animation on Enzyme Inhibition.

http://www.wiley.com/college/pratt/0471393878/student/animations/enzyme_inhibition/index.html[/url

bio_man   2479   2 Replies

bio_man

Frog Gastrulation Animation

Frog Gastrulation Animation

Here is a walk-through of frog gastrulation.

See this: http://bcs.whfreeman.com/thelifewire/content/chp20/2002001.html

[flash=525,530]http://bcs.whfreema

bio_man   5583   3 Replies

bio_man

Mammal hormones

Mammal hormones

name two hormones found in a mammal and what is there functions

leah   3380   1 Reply

bio_man

Give two possible biological and/or methodological reasons for why a population might show ...

Give two possible biological and/or methodological reasons for why a population might show ...

Give two possible biological and/or methodological reasons for why a population might show significant deviations from the genotypic frequencies expected under Hardy-Weinberg equilibrium. Explain the kind of deviation expected under each reason.

alex   1250   1 Reply

bio_man

Evolution2

Evolution2

Mutations can be beneficial, deleterious or neutral. How would you design an experiment to evaluate the relative proportion of the different kinds of spontaneous mutations in an organism? Explain what data you would collect in such an experiment and

alex   809   1 Reply

bio_man

Evolution3

Evolution3

What does the expression imperfect adaptation mean? Give one anatomical and one molecular example of imperfect adaptation. How might evolution by natural selection and/or genetic drift explain one of your examples.

alex   751   1 Reply

bio_man

Natural selection can result in changes in allele frequencies. Can natural selection cause the ...

Natural selection can result in changes in allele frequencies. Can natural selection cause the ...

Natural selection can result in changes in allele frequencies. Can natural selection cause the stable coexistence of two or more alleles at the same locus? If not, explain why that is. If so, give an example and explain how the equilibrium is maintai

alex   1149   1 Reply

bio_man

Darwin found that the faunas and floras of oceanic islands tend to be impoverished and unbalanced ...

Darwin found that the faunas and floras of oceanic islands tend to be impoverished and unbalanced ...

Darwin found that the faunas and floras of oceanic islands tend to be impoverished and unbalanced when compared to those of continental islands. Explain and provide examples of this difference. Outline the evolutionary explanation Darwin proposed to

alex   1321   1 Reply

bio_man

The inheritance of acquired characteristics was widely regarded as true up to the beginning of the ...

The inheritance of acquired characteristics was widely regarded as true up to the beginning of the ...

The inheritance of acquired characteristics was widely regarded as true up to the beginning of the 20th century. Explain the concept and how it was thought to fit into the evolutionary process by its supporters. Certain discoveries undermined the imp

alex   998   1 Reply

bio_man

fresh water protist diseases in North eastern and southern us, and in asia

fresh water protist diseases in North eastern and southern us, and in asia

I need to find two fresh water protist diseases for humans that are in North eastern us, southern us, and in Asia. Can you help me?I need to find two diseases for each place. I mean that the protists need to be found in those places.

azucena   1452   1 Reply

bio_man

Some household drain cleaners consist of a mixture of granules of sodium hydroxide and powdered alum

Some household drain cleaners consist of a mixture of granules of sodium hydroxide and powdered alum

now i know this is a biology forum but i got a post in the chem section of yahoo answers so i decided to come here....not sure if you guys will know the answers though  .

Question 1.

Some household drain cleaners consist

mazda215   1628   1 Reply

bio_man

Differential interference contrast light microscopy (Cell Division)

Differential interference contrast light microscopy (Cell Division)

Biology Forums   1605   N/A

Biology Forums

Ecology/Evolution

Ecology/Evolution

Adaptive radiation and Phoresy?
i would like more info on the context above
asap !!!!!!!!!!
tanx

Shim   1737   6 Replies

Shim

Chem2

Chem2

Ok, thanks to the person who answered my questions in the other thread i made but i now need help on some more questions...

1.Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignit

mazda215   1142   4 Replies

mazda215

Food Microbiology, perishable food question.

Food Microbiology, perishable food question.

Perishable food compared to cfu/ml question.?
Would you be concerned if a ready to eat perishable food had a psychrotrophic count of 100 CFU/ml or g of a product? How about a mesophilic count of 100 CFU/ml or g? Would the level of concern

nuria   1686   1 Reply

bio_man

Chem 3

Chem 3

ok so i need help on these two questions..

1.Calculate the molarity of a solution that contains 5.35g NaCI in a 220 ML solution

2.What mass of Glucose C6H1206 is required to prepare 500 ML of a 2.50 M solution?

mazda215   1305   4 Replies

chemb

How to write net ionic equations for basic and acidic solutions?

How to write net ionic equations for basic and acidic solutions?

How to write net ionic equations for basic and acidic solutions?
Write a balanced net ionic equation for the following reaction in basic solution:

1 ) Zn(s) + NO3- (aq) -> NH3(aq) + Zn(OH)4^(2-)

Write a balanced net ioni

SakurasFlowers   8205   2 Replies

bio_man

How to write net ionic equations for acidic solutions?

How to write net ionic equations for acidic solutions?

PbO2(s) + CI-(aq) -> PbCI2(s) + O2(g)

SakurasFlowers   1273   1 Reply

bio_man