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April 21, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Wednesday, May 30, 2012 at 10:29am

biology i need help urgent
what characteristic distinguishes arthropods from other invertebrates? a. the colem b.the endoskeleton c.jointed appendages d.bilateral symetry
Wednesday, May 30, 2012 at 9:51am

biology
what is a notochord, and what is the notochord surrounded by
Wednesday, May 30, 2012 at 9:41am

biology
There are several genes for eye color. Since this is not my area of expertise, I searched Google under the key words "eye color gene location" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=eye+color+gene+location&ie=U​...
Tuesday, May 29, 2012 at 7:04pm

biology
the gene for eye colour is located on ? a) x chromosome b) y chromosome c) both a and b d) non of them
Tuesday, May 29, 2012 at 4:04am

biology
which of the following cannot cause change in gene pool a) mutation b) migration c) meiosis d) genetic drift
Tuesday, May 29, 2012 at 3:43am

Biology
Which is the correct direction of blood flow? a) right atrium --> right ventricle --> pulmonary artery b) right atrium --> left atrium --> pulmonary artery c) left ventricle --> pulmonary artery --> aorta d) left ventricle --> left atrium --> aorta
Monday, May 28, 2012 at 8:15pm

Chemistry
I hardly know what you are looking for in an answer. When we smell something we are detecting the gases that arise from some material. You may read more about it here. http://science.howstuffworks.com/environ​mental/life/human-biology/smell.htm
Monday, May 28, 2012 at 4:25pm

Biology
The Kingdom Monera has been separated into two domains, the Archaea and the Bacteria. Which of the following was most important in prompting scientists to change the way these organisms were classified? a.)Major differences were discovered in the structure and operation of the...
Sunday, May 27, 2012 at 5:48pm

biology
Multiple Alleles
Thursday, May 24, 2012 at 9:06pm

biology
In rabbits, there are four different versions of the gene for coat color. What pattern of inheritance is this?
Thursday, May 24, 2012 at 9:03pm

I really need help with biology!!
1. cardiac 2. you wind up to pitch 3. is unlikely to incur bacterial infection 5. glucagon
Thursday, May 24, 2012 at 3:16pm

Biology
Google "GABA".
Wednesday, May 23, 2012 at 9:59pm

Biology
In general, how do neuron inhibit cells?
Wednesday, May 23, 2012 at 4:29pm

biology
give vaccinations to 50 of the 100 rats and then expose all 100 to the disease
Wednesday, May 23, 2012 at 3:31pm

biology
what school you go to
Tuesday, May 22, 2012 at 4:43pm

biology
Need help with FOV area (mm2) totally confused? im confused i have the FOV diameter they are: 4x = 5 10x = 2 40x = 0.5 a classmate told me she thinks the area for 40 x is: pi(5/2)^2 = 19.6 not sure if thats true or how to do it for the low and medium, magnification. please ...
Tuesday, May 22, 2012 at 3:33pm

biology?
Indicate your subject in the "School Subject" box, so those with expertise in the area will respond to the question. Since this is not my area of expertise, I searched Google under the key words "effects of setting up territories" to get these possible ...
Tuesday, May 22, 2012 at 10:43am

Biology
I can't help you with your book, but I searched Google under the key words "excessive alcohol concentration in blood" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=excessive+alcohol+concentrat​ion+in+blood&ie=UTF-...
Tuesday, May 22, 2012 at 10:39am

Marine Biology
Surface currents are created by wind and the Earth's rotation. What creates deep water currents?
Tuesday, May 22, 2012 at 9:35am

Biology
- "problems that result as blood alcohol concentration increases" Basically, I'm supposed to put what page number the answer is on, and then what the answer is. I have the page number, yet the answer is no where on the page to be found. I've read it over ...
Tuesday, May 22, 2012 at 5:16am

english
I wrote an essay because i'm apply to get into the honor's program. I'm supposed to write about who i was, who i am now, and who I would like to be. I would appreciate it if I got some feed back along with grammar correction. Is my essay even close to being okay or...
Tuesday, May 22, 2012 at 1:12am

Biology - True or False
tr
Monday, May 21, 2012 at 10:23am

Biology
1) True 2)natural selection 3)true 4)?? 5)False 6)Decreases (you have the same # of different genes staying within a small area((inbreeding))
Saturday, May 19, 2012 at 9:06am

biology
L l W LW Wl w Lw lw
Saturday, May 19, 2012 at 9:02am

Biology
The genes for hair color and eye color are linked
Friday, May 18, 2012 at 1:37am

BIOLOGY
it binds Thymine in DNA and Uracil in RNA
Thursday, May 17, 2012 at 6:51am

Biology
1. risk factors for PE and how they can be managed 2. how a thrombus is formed on a cellular level and its potential for propagation 3. how deep venous thrombus differs from a pulmonary embolus etc
Thursday, May 17, 2012 at 6:48am

BIOLOGY
which nucleotide is always paired with adeine in a dna molecule
Wednesday, May 16, 2012 at 10:24pm

PSY 301 Adult Development & Life Assessment
I am not sure because it really does not say. Here is the topics that is covered in chapter 1 of the book. Basic Concepts in Adult Development Sources of Change Normative Age-Graded Influences Biology Shared Experiences Internal Change Processes Normative History-Graded ...
Wednesday, May 16, 2012 at 4:58pm

biology 123456789 123456789 123456789
:)
Wednesday, May 16, 2012 at 10:44am

biology 123456789 123456789 123456789
:)
Wednesday, May 16, 2012 at 10:44am

Biology
I think that you calculate algebraically: since 400% is quadruple, divide that by 5.5% to get the # of years
Tuesday, May 15, 2012 at 9:38pm

Biology for sister
thank you ms. sue i tell her about this
Monday, May 14, 2012 at 6:45pm

Biology for sister
Jiskha doesn't have regular biology tutors at this time. Try posting your questions on this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Monday, May 14, 2012 at 6:42pm

Biology for sister
my sister need help with biology homework she need to describe ecology of amoeba, paramecium, and diatom. telling where it be found. how it meet it nutritional needs using and explaining with the right terminology like autotrphic, photosyntetic, parasitic, etc. what impact it ...
Monday, May 14, 2012 at 6:29pm

Biology
A population of hawks increases in size by 5.5% each year. In how many years will this population quadruple?
Monday, May 14, 2012 at 5:56pm

SCI7R - HW Check! (plzzz read!)
http://biology.about.com/od/anatomy/ss/v​entricles.htm
Monday, May 14, 2012 at 4:51pm

Biology
What are the effects of a pulmonary embolism? How can a pulmonary embolism be treated?
Monday, May 14, 2012 at 11:49am

Biology
What is a good question I can ask my class about Pulmonary Embolism that would create a good discussion?
Sunday, May 13, 2012 at 6:25pm

science-biology
Since Jiskha doesn't have a biology expert at this time, please try posting your question at this site. http://www.biology-online.org/biology-fo​rum_search_20140419/
Saturday, May 12, 2012 at 8:34am

science-biology
can anyone help me by finding which enzymes are present in carbohydrates? is it salivary amylase(tyalin)
Saturday, May 12, 2012 at 1:39am

biology
They evolve into evolutionary niches - i.e the common ancestors descendents eventually started to evolve traits that distinguished them from the parent (and branch) species.
Wednesday, May 9, 2012 at 1:59pm

biology
How geographic isolation of a common ancestral species of finches has led to the development of 14 different species of finches in the Galapagos Islands?
Wednesday, May 9, 2012 at 1:27pm

biology
Although birth control is the responsibility of both partners, who do you think is the most concerned about not becoming pregnant? There are birth control methods for men, some temporary and some permanent. http://www.google.com/search?client=safa​ri&rls=en&q=birth+...
Tuesday, May 8, 2012 at 7:18pm

biology
Sperm need to be in an environment a few degrees cooler than body temperature to develop normally. That is why the testes are external to the body. What would you implement to deal with this?
Tuesday, May 8, 2012 at 7:13pm

biology
Most birth control measures are designed for and marketed to women. Why do you think this is the case? Is it just the woman’s responsibility? What could be the advantages of creating more birth control methods for men?
Tuesday, May 8, 2012 at 1:45am

biology
Some young men were told by their mothers not to wear tight briefs, as this could make them sterile and infertile. Explain how wearing tight briefs could do this. What alternative methods could you implement to avoid sterility and infertility, and why?
Tuesday, May 8, 2012 at 1:44am

biology
Both of Susie’s parents died from breast cancer. Susie tested positive for the BRCA1 gene, the BRCA2 gene, and HPV; however, she does not have any cancer cells in her body or any signs or symptoms. Susie just called you and told you that she has decided to undergo a ...
Tuesday, May 8, 2012 at 1:36am

biology
http://www.google.com/#hl=en&sugexp=cqn%​2Ccconf%3D0.95%2Cmin_length%3D2%2Crate_l​ow%3D0.006%2Crate_high%3D0.006&gs_nf=1&g​s_mss=muscles%20always%20work%20in%20pai​rs&pq=muscles%20always%20work%20in%20pai​rs&cp=9&gs_id=23&xhr=t&q=brain+sleep&pf=&#...
Monday, May 7, 2012 at 7:51pm

biology
What reactions go on in your brain when you fall asleep? If you could give me a website that goes INDEPTH as to what happens in the brain when you fall asleep that would be great!
Monday, May 7, 2012 at 7:44pm

biology
Since Jiskha does not have a regular biology tutor, you might try these sites: http://www.khanacademy.org/ Scroll down on this webpage to find the biology section. http://biology-forum_search_20140419s.co​m/index.php If there is a tutor here who can help you with this ...
Monday, May 7, 2012 at 12:06pm

biology
Its E. the cell membrane contains a double layer of fatty acid tails and phosphate heads which allow for diffusion to take place, the protein channels are there for more complex molecules to pass through the membrane and cholesterole is there to prevent cell from freezing ( ...
Monday, May 7, 2012 at 12:06pm

biology
Can change in heart rate due to exercise be expressed in percentage difference to compare the rest rate and the exercise rate? why is it a good/bad thing to do?
Monday, May 7, 2012 at 10:50am

biology 2 ap
b. transfer energy with ATP
Saturday, May 5, 2012 at 6:33pm

Biology
Dont know the first one Broken character i'll get over it
Friday, May 4, 2012 at 5:18pm

biology
The Cell membrane contains A) a double layer of fatty acid tails and phosphate heads B) cholesterol C) protein channels or pores D) a and b E A,B, and C
Thursday, May 3, 2012 at 8:01pm

Biology
answer is b
Wednesday, May 2, 2012 at 3:17pm

Biology
In pea plants the colour of the peas is genetically controlled. Each pea represents a separate fertilisation. Smooth texture (S) is dominant to wrinkly (s) and green (G) colour is dominant to yellow (g). Following a breeding experiment with pea plants, the following ratio of ...
Wednesday, May 2, 2012 at 7:53am

Biology
Another brain teaser I can't get: What are Mr. Rahn's favorite states" Hint: "it matters"
Tuesday, May 1, 2012 at 11:37am

Biology
I can't figure out these brain teasers: i.e.point act char er ILL GET IT
Tuesday, May 1, 2012 at 11:33am

Biology
What are the similarities of the evolution of birds on hawaiian islands and the finches on the Galapagos?
Monday, April 30, 2012 at 8:16pm

Biology
What are the similarities of the evolution of birds on hawaiian islands and the finches on the Galapagos?
Monday, April 30, 2012 at 6:56pm

biology
Since each is homozygous for both traits, LLww mates with llWW. Each partner has gametes with only Lw and lW. That should help you answer the questions.
Monday, April 30, 2012 at 2:44pm

biology
Initially, how do skeletal muscles (the type of muscle attached to bones) make ATP? write the reaction for this procss (Crp +ADP => Cr + ATP) as a 'coupled' reaction, identifying the exergonic and endergonic reactions. what would this type of ATP production be called?
Sunday, April 29, 2012 at 7:00pm

biology
Initially, how do skeletal muscles (the type of muscle attached to bones) make ATP? write the reaction for this procss (Crp +ADP => Cr + ATP) as a 'coupled' reaction, identifying the exergonic and endergonic reactions. what would this type of ATP production be called?
Sunday, April 29, 2012 at 6:59pm

biology
Initially, how do skeletal muscles (the type of muscle attached to bones) make ATP? write the reaction for this procss (Crp +ADP => Cr + ATP) as a 'coupled' reaction, identifying the exergonic and endergonic reactions.
Sunday, April 29, 2012 at 6:58pm

biology
how does the REM help create a sleep signal sent from the pons in the brain that helps to stop motor neurons in the spine when a person sleeps. Please help me! I am looking for detailed information right down to the certain proteins and such! I have searched everywhere and ...
Sunday, April 29, 2012 at 3:01pm

biology
In some dogs, long hair (L) is dominat over short hair (l), and wavy hair (W) is dominant over straight hair(w). Draw a cross between a dog that is homozygous for long hair and straight hair with a dog that is homozygous for short hair and wavy hair. What would the genotype ...
Sunday, April 29, 2012 at 2:14pm

Biology
True or false? (if false, replace word in *here*) 1) The random changes of allele frequencies associated with genetic drift frequently lead to a *gain* in genetic diverse. 2) *sexual selection* helps maintain the Hb^a/Hb^s heterozygous conditions in humans. 3) bottleneck and ...
Sunday, April 29, 2012 at 12:38pm

biology
o2 is liberated due to the breakdown of water not from co2 proved by ruben and camen
Sunday, April 29, 2012 at 2:50am

Biology
fibroblst growth factor receptor 3 is a protein which responsible for formation of microfibrils and microtubules in cell division helpful for pulling the chromosomes during anaphase
Saturday, April 28, 2012 at 10:44am

biology
because it helpful for production of melanin
Friday, April 27, 2012 at 4:54am

biology
due to its high mol.weight of the molecules
Friday, April 27, 2012 at 4:52am

biology
1,Why do autotrophs always occupy the lowest level of ecological pyramids? 2.Explain how the growth of one population can bring about the disappearance of another population during succession? 3. Describe some common plants and animals from a tropical rain forest and a ...
Thursday, April 26, 2012 at 10:19pm

Ethics
Having taught biomedical ethics, I wonder how abortion is biomedical? It is a medical procedure,either surgical or non-surgical, with social and religious ethics involved,which is of concern to some of the community. Some of them are really involved in it. biomedicine: 1. The ...
Thursday, April 26, 2012 at 9:53pm

science
http://www.biology-online.org/dictionary​/Lock-and-key_model
Thursday, April 26, 2012 at 12:03pm

Biology
Since this is not my area of expertise, I searched Google under the key words "protein encoded by FGFR3" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=protein+encoded+by+FGFR3&ie=​UTF-8&oe=UTF-8 In the future, you can...
Thursday, April 26, 2012 at 11:30am

biology
farmer is affraiding of insectivorus plants they are eating insects
Thursday, April 26, 2012 at 10:39am

Biology
What is the name of the protein encoded by FGFR3? Thanks for any help!
Thursday, April 26, 2012 at 10:16am

Biology
Both, because of the reduction of nitrate to nitrogen gas makes it biological and chemical.
Wednesday, April 25, 2012 at 10:35pm

Biology
Is denitrification a biological or chemical process or both? Explain your answer.
Wednesday, April 25, 2012 at 9:35pm

Biology
http://chemistry.about.com/od/solutionsm​ixtures/a/Osmolarity-And-Osmolality.htm
Wednesday, April 25, 2012 at 7:38pm

Biology
What is the difference between osmolality and osmolarity?
Wednesday, April 25, 2012 at 7:36pm

science-biology
it is nothing but enzyme which increase the rate of reaction
Wednesday, April 25, 2012 at 2:31pm

Biology
Since this is not my area of expertise, I searched Google under the key words "properties of blood" to get these possible sources: http://www.google.com/search?client=safa​ri&rls=en&q=properties+of+blood&ie=UTF-8​&oe=UTF-8 In the future, you can find the ...
Wednesday, April 25, 2012 at 10:43am

science
What is your specific context? Biology? Physics?
Wednesday, April 25, 2012 at 10:17am

Human Biology
Starting with the right ventricle of the heart, describe the function of the heart and the movement of the blood through the pulmonary and systemic circuit. Include a description of gas exchange within the lungs. Now consider what happens if Jake starts smoking. Discuss in ...
Wednesday, April 25, 2012 at 3:41am

Biology
how many properties of blood exists
Wednesday, April 25, 2012 at 12:59am

biology
these are the primitive organisms contain nucleoid without nuclear membrane,membrane bound cell organelles are absent except 70s ribosomes.
Tuesday, April 24, 2012 at 10:09am

biology
three pairs of salivary glands are there they are 1.sublingual glands,2.submaxillary glands,3parotid glands.In that parotid glands are large.
Tuesday, April 24, 2012 at 10:04am

Biology
follecular stimulating hormone stimulating the development of follecle from which ovule is released
Tuesday, April 24, 2012 at 9:42am

Biology
follecular stimulating hormone stimulating the development of follecle from which ovule is released
Tuesday, April 24, 2012 at 9:42am

Biology
Since the resting potential of a neuron is -70mV, you could consider it that way.
Tuesday, April 24, 2012 at 9:08am

Biology
Is depolarization positive and repolarization negative?
Tuesday, April 24, 2012 at 1:33am

Biology
http://womenshealth.about.com/od/womensh​ealthglossary/g/follicular_phas.htm
Monday, April 23, 2012 at 5:13pm

Biology
What does follicular activity mean?
Monday, April 23, 2012 at 3:02pm

biology
two natural and two man-made causes for sulfur dioxide and nitrogen oxides in the atmospher
Monday, April 23, 2012 at 12:21pm

Biology
I am analyzing a scientific article for my biology class. I am trying to comprehend all of the terms used and am hoping I can gain other's insight as to where this article is flawed and what could have been done to improve it. The article is titled: Effect of age and ...
Monday, April 23, 2012 at 4:56am

Health
Jennifer is fifty-four. Her husband Brian died suddenly in a care crash. Not only was she emotionally distraught, but she found herself in serious financial turmoil. Brian had handled the finances (at least she had thought he had) throughout their 21 year marriage. Upon his ...
Sunday, April 22, 2012 at 11:51pm

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