January 29, 2015

Homework Help: Science: Biology

Recent Homework Questions About Biology

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Suppose you plant a seed and observe that a tree of large mass grows from it. The tree achieves a final mass that changes very little for years afterward. Which of the following is true about the tree? (1 point) Both anabolic and catabolic reactions took place in the seed and ...
Friday, August 24, 2012 at 2:38pm

what does the word hypothesis come from?What is the meaning?
Thursday, August 23, 2012 at 9:30pm

Biology - genetics
How does crossing over change the combination of alleles in gametes? Thanks :)
Thursday, August 23, 2012 at 3:01am

What is meant by the statment living things do not exist in isolation?
Tuesday, August 21, 2012 at 9:05pm

How do I convert km to nm? Like 299.32 km = nm
Sunday, August 19, 2012 at 11:29pm

2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water.
Sunday, August 19, 2012 at 10:41pm

1. Prior to sowing rice,a legume crop was cultivated and ploughed back in the field,why? Explain. 2. What is a flower?Describe the parts of a typical angiosperm flower. 3. Write zoological name of the following: (a)Elephant (b)Lion. 4. "There is clear division of labour ...
Tuesday, August 14, 2012 at 12:57am

Predict what would happen to the P-R interval and Q-T interval and T-P interval on a ECG when a subjects exercises workout increases?
Monday, August 13, 2012 at 9:28pm

Contrast the role of research in science and pseudoscience...??!! #LOST
Sunday, August 12, 2012 at 3:30pm

Summarize the importance of homeostasis.
Sunday, August 12, 2012 at 3:29pm

this system is a ___________ system in which measurements are expressed in multiples of _____________ or _________of a basic unit.
Sunday, August 12, 2012 at 3:11pm

The system of measurement is abbreviated _________________.
Sunday, August 12, 2012 at 2:59pm

in order for scientific research to be universally understood,scientists report measurements in the ________________,a modern form of the metric system.
Sunday, August 12, 2012 at 2:58pm

what is the difference between notocord and backbone.
Sunday, August 12, 2012 at 11:50am

can you explain gametes and zygote of the kangaroo paw?
Sunday, August 12, 2012 at 6:50am

What is the difference between adventitious root and fibrous root?
Saturday, August 11, 2012 at 12:42pm

Science Biology
What happens when TCDD binds to the AhR receptor? How does it cause diseases/health problems in people?
Friday, August 10, 2012 at 7:13pm

Trophic Level Cylinder Volume of H2O Volume of Oil Total Volume % Oil 1st 1000 ml 1000 ml 2nd 100 ml 100 ml 3rd 10 ml 10 ml
Thursday, August 9, 2012 at 9:37am

1.What is the % concentration of oil in the first, second, and third trophic levels in our food chain? 2.How did the concentration of oil change from one trophic level to the next? 3.How does the change in concentration represent biomagnification? 4.How does this also ...
Thursday, August 9, 2012 at 9:27am

Explain the importance of an arthropod’s exoskeleton. In your explanation, be sure to address how is it able to grow tens of times larger than it was at birth, even though it has an exoskeleton. Also discuss at least two benefits of an exoskeleton as well as how the ...
Monday, August 6, 2012 at 7:43am

Hi, I was wondering if I answered this question correctly #1-Two kinds of cell-transport are used in the process that forms ATP. Name the two types of transport and describe how they take place. Electron transport is not a form of cell transport. #1- I think the passive and ...
Friday, August 3, 2012 at 8:11pm

My question is that I want a project based on the Human Body.Like a project of Cells ( I have done that) HELP give me ideas
Wednesday, August 1, 2012 at 11:42am
If trypsin and chymotrypsin become activated within the pancreas and then are released in their active forms into the bloodstream, why would this represent a potentially life-threatening situation?
Tuesday, July 31, 2012 at 5:23pm

what is anterior tibial translation?
Friday, July 27, 2012 at 8:56am

Describe the processes of transcription and translation and correctly identify the anticodon for the following DNA template strand-ACG TGG GCA TGA ACG TGG. Which amino acids do these anticodon represent?
Thursday, July 26, 2012 at 9:34pm

What does it mean that an anterior cruciate ligament resists anterior translation and internal rotation?
Tuesday, July 24, 2012 at 5:24pm

Questions for Exam 1 for Concepts in Biology 12 edition
Thursday, July 19, 2012 at 4:43pm

How do I calculate protein concentration if I know the purity is 97.3% and MW = 2666.31 kDA Thanks
Tuesday, July 17, 2012 at 12:41pm

How do I calculate protein concentration if I know the purity is 97.3% and MW = 2666.31 kDA Thanks
Tuesday, July 17, 2012 at 12:14pm

human biology
A 56 year old obese male is rushed to the ER via ambulance. The EMS team reports he was found non- responsive and in shock. Additionally, they note he has a stiff rigid abdomen and can feel a large lump near the midline. Upon questioning, his wife explained that her husband ...
Monday, July 16, 2012 at 11:00pm

If the line for 60 captured is extended downward to zero percent error, what fraction of the total population would this represent? (Compare the actual number in the can to the extrapolated number on your graph.) What more information do I need to provide to get an answer?
Sunday, July 15, 2012 at 6:16pm

A trip to a different stream which had 30 fish marked at an earlier time produced 20 captured fish but none were recaptured with fish tags. Can you estimate the number of fish in this stream? Explain your answer.
Sunday, July 15, 2012 at 6:10pm

Discuss two lifestyle factors (one for bone and one for muscle) that affect the growth, development, size and/or healing (positively or negatively of the tissue. Also state whether the factor can lead to a disease or disorder of the tissue.
Sunday, July 15, 2012 at 3:23pm

Choose ALL that represent quantitative data. the amount of time you spend studying each week your street address how many years you have owned your car the company that you use for cell phone service the number of people who live with you your score on the last MAT 115 test my...
Thursday, July 12, 2012 at 9:23pm

What are biomes and how are they influenced by latitude and elevation? Give Examples
Thursday, July 12, 2012 at 3:25pm

Difference between tendon and ligament
Thursday, July 12, 2012 at 7:09am

An instructor for a college biology lab has each of her 12 students (you are one of those 12 students) take their own SRS of 25 plants from an experimental field. She lets you know that the heights (measured in cm) of the plants in the field follow a N(50,4) distribution. a. ...
Wednesday, July 11, 2012 at 10:03pm

Why is the universal genetic code considered universal?
Wednesday, July 11, 2012 at 3:17pm

Both the description and the definition of ecology and its significance to you and the society
Tuesday, July 3, 2012 at 2:57am

biology 2
The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the efficiency and ...
Monday, June 25, 2012 at 6:23pm

solar energy
Sunday, June 24, 2012 at 4:17am

The function / effectiveness of an enzyme can be disabled by the slightest change in the sequence of its proteins. What prevents an enzyme from performing its functions in the event that its protein sequence is changed?
Thursday, June 21, 2012 at 9:01am

When a grouse eats berries, the berry seed are eliminated as waste materials and may be dropped in another part of the forest where they may sprout and eventually grow into new berry plants. How would you classify the symbiotic relationship between the berry plant and the ...
Thursday, June 21, 2012 at 8:47am

Is Wind Power Green? I am writing a paper and I need to put together an outline of my final paper. I would just like to know if the following paragraph I have put together can serve as a thesis statement? "The idea that the world is reaching a possible peak in oil ...
Sunday, June 17, 2012 at 4:49pm

Biology Lab
Can you please show me how to answer this question using C1V1=C2V2 A scientist receives a vial containing a protein at at concentration of 35mg/ml and is asked to add 0.25ml of it to 6.75mls of Biuret solution. What is the concentration of protein in the Biuret solution in mg/ml?
Sunday, June 17, 2012 at 10:34am

The release of eggs and sperm near each other into the water occurs during A spawning. B development. C growth. D all of the above. Is it A?
Friday, June 15, 2012 at 2:45pm

Which of the following are three common characteristics of echinoderms? A tube feet, circulatory system, body symmetry B marine-dwellers, endoskeletons, water-vascular system C bilateral symmetry, ossicles, respiratory system D mouths, protosomes, body symmetry is it C...
Thursday, June 14, 2012 at 4:32pm

to grow larger, arthropods must A grow a new endoskeleton. B grow a new exoskeleton. C add to the old endoskeleton. D add to the old exoskeleton. is it B?
Thursday, June 14, 2012 at 4:08pm

Growth by cell division that makes both ends of a plant longer but not wider is called A secondary growth. B annual ring growth. C vascular growth. D primary growth. is it D? thanks
Wednesday, June 13, 2012 at 12:12pm

What is the function of plasma?
Wednesday, June 13, 2012 at 10:47am

Could you please check scientific English in this short dissertation? Thank you, Ms. Sue. 1) Conrad Waddington introduced the term epigenetics in the early 1940s. He defined epigenetics as ‘‘the branch of biology which studies the causal interactions between genes ...
Thursday, June 7, 2012 at 6:52pm

why does The sodium-potassium pump move potassium ions into and sodium ions out of a cell down a protein canal?
Wednesday, June 6, 2012 at 6:44pm

predict the expected phenotypic and genotypic ratios among the offspring of two individuals who are heterozygous for freckles(Ff) buy using a punnett square.
Tuesday, June 5, 2012 at 2:42pm

how many ATP molecules are released during cellular respiration? or what is the value of1 ATP molecule?
Monday, June 4, 2012 at 12:22pm

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 16% of your total grade, each major test is worth 21%, ...
Sunday, June 3, 2012 at 1:39pm

Help me to understand diverse organism! Pleas also include website that help you become better at taking notes. Thank you..
Thursday, May 31, 2012 at 6:01pm

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

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

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

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

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

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

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

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

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

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

- "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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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Homework Help: Science