Biology

What percentage of salt was in the hypertonic solution during the red blood cell experiment

Help!-Any concentration of NaCl above about 0.89% would be hypertonic to erythrocytes..-Salam, first of all before going to do an experiment like this one u should know first the molarity of red bloo

What would happen if an animal cell slide was made with very salty water

From what I know, salt water is hypertonic, right? So would the animal cell slide shrink?-You got it. No help needed there.

How do emotions work? Give me a basic idea of how the mind/brain/emotions operate

in the human animal?-Emotions are physical sensations: tears in the eyes, stomach clenching, jaw getting tense, voice getting shrill. These can be caused by thoughts.For example, if you think that yo

Is there an innate biological fear of genetic annihilation in pale skinned/ genetic recessive human beings

Is there an innate biological fear of genetic annihilation in pale skinned/ genetic recessive human beings?-Nope, or no more so than in other groups -- most groups have an us vs them somewhere, you kn

Can leeches or other blood-sucking parasite-like creatures die from catching viruses

I assume that they can, but my friend is convinced that they cant.-Well Im not an expert but I would assume they certainly do.I cant think of one good reason why viruses, simple and effective as they

How does an animal cell membrane benefits its movement

yeahhhh help-The animal cell membrane allows the cell to move about because of its structure. The cell membrane is semi-permeable,which means that its able to let some substances through. But during

Why is iy easier to stdy genetic change in bacteria than multicellular organisms

Salam, the answer is quite simple. Bacteria is unicellular organism and any change which happens in bacteria is in single cell. So far as multicellular organisms are concerned they have millions of c

Why cant humans digest cellulose

Salam, the answer is simple. The enzyme which digests cellulose in animals is absent in us-The major component in the rigid cell walls in plants is cellulose. Cellulose is a linear polysaccharide pol

Why do most food chains stop at 4 or 5 trophic levels

Each trophic level gets increasingly less efficient at getting energy from the lower levels: each level higher than the next tends to hold 10% of the energy that the lower level could hold. For exampl

What is the functions of a liver

The liver has many functions. Some of the functions are: to produce substances that break down fats, convert glucose to glycogen, produce urea (the main substance of urine), make certain amino acids (

Describe the bacterial "nucleoid." (Why is it not a termed a "nucleus"

Why would you name it a nucleoid and not a nucleus?-The bacterial nucleoid is not membrane-bound so it is not a true nucleus.-yep..in medical terms OID means resembling I would also add that bacteria

Why are omnivores found at different levels of a food pyramid

I dont think you mean food pyramid you mean food chain or web right? Well then, omnivores are found on different areas of the food chain because of their trophic level. The definition of omnivores is

What is the major function of a kidney

The main function of the kidney is basically to rid the body of toxins, but this is not the only function of the kidney. The kidneys play a crucial role in keeping the blood clean and regulating the a

Several classes of organisms would be classified into one..

a. order b. genus c. phylum d. family i think the answer is phylum because phylum is made up of classes and it says several classes of organisms but my book doesnt have answers in it.-You are correct

What is the difference between substrate level phosphorylation and ATP hydrolysis

Substrate level phosphorylation is the Transfer of phosphate group from one molecule to another. Atp hydrolysis is the breakdown of an atp molecule with the release of 30.6kJ of energy for every phosp