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October 25, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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biology
provide information the muscles found within the forearm and hand
Thursday, November 8, 2012 at 4:50pm

Biology
Bacteroides and Escherichia are both gram-negative rods found in the large intestine. Why are they in different phyla?
Wednesday, November 7, 2012 at 11:23pm

Algebra/Biology
y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.
Tuesday, November 6, 2012 at 8:19pm

biology
Assume that a mature female vegetarian consumed 2 pounds of food daily for one year. At the end of this one year, she weighed ½ pound more than she weighed at the beginning of that year. a. What was the percentage of biomass conversion at this trophic level? (hint: ...
Tuesday, November 6, 2012 at 4:55pm

biology
What is the different between tissue-specific knockout mouse and an inducible knockout mouse
Tuesday, November 6, 2012 at 8:42am

biology
What is the different between tissue-specific knockout mouse and an inducible knockout mouse
Tuesday, November 6, 2012 at 3:51am

biology
What is a tissue-specific knockout mouse and an inducible knockout mouse?
Monday, November 5, 2012 at 6:45pm

biology
In which sequence did aerobes, anaerobes, chemolithotrophs and cyanobacteria evolve? What evidence is there to support your answer. If someone can answer please. I think its talk about how cyanbactoria evolve.
Sunday, November 4, 2012 at 7:57pm

biology
purpose of the special sense organs
Sunday, November 4, 2012 at 4:23am

Conservation Biology
What is the population total at one hundred years if you begin with two animals and they reproduce at 25% annually?
Saturday, November 3, 2012 at 10:28pm

SAT Essay
Assignment: Can knowledge be a burden rather than a benefit? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experiences, or observations Essay: Knowledge can ...
Saturday, November 3, 2012 at 7:14pm

biology
A homozygous tall Man got married to a heterozygous tall woman and they produce four offspring. Illustrate with cross - links the phenotype and genotype of their children
Saturday, November 3, 2012 at 11:30am

biology
what is the function of pancreas
Saturday, November 3, 2012 at 7:41am

biology
what is the function of adrenel glands
Saturday, November 3, 2012 at 7:40am

SAT Essay
Assignment: Can knowledge be a burden rather than a benefit? Plan and write an essay in which you develop your point of view on this issue. Support your position with reasoning and examples taken from your reading, studies, experiences, or observations Essay: Knowledge can ...
Friday, November 2, 2012 at 3:33pm

personal statement
this is my personal statement. plese check my grammar and what other stuff i can add or remove? thanks Ever since I was a little kid and till a year ago, I really didn’t know what I wanted to be in life. I imagined myself to be a teacher when I was 8 years old. As I grew ...
Friday, November 2, 2012 at 2:54pm

Biology
Name of banana's stem,flower
Thursday, November 1, 2012 at 9:15pm

biology
what is the function of the diaphragm?
Wednesday, October 31, 2012 at 6:57am

biology
how does the bladder act in elimination?
Wednesday, October 31, 2012 at 6:55am

Biology
In humans, W=widows peak while w=normal hair line and A=attached earlobes while a= unattached earlobes. A heterozygote in both traits reproduces with a similar heterozygote in both traits. What is the chance of any one child having the same genotype of the parents?
Tuesday, October 30, 2012 at 8:02pm

biology
what are the different parts that comprise the musculoskeletal system
Tuesday, October 30, 2012 at 6:18am

biology
what is included in the special sense organs
Tuesday, October 30, 2012 at 6:11am

biology
Choose the total number of each item requested below. 4C6H12O6 Carbon atoms Hydrogen atoms Oxygen atoms Molecules
Monday, October 29, 2012 at 12:21pm

BIOLOGY/CHEMISTY
a student uses the unduiluted glucose stock solution in a reaction and finds that the absorbance values over 90 seceonds are all 1.900. What does this result tell you abou the enzyme activity of glucose oxidase in this reaction after the 90 seconds time point? Would it be ...
Sunday, October 28, 2012 at 11:33pm

biology
If your ears were larger, you would: a. be able to hear sounds at lower amplitude (softer sounds) b. lose the ability to hear low amplitude high frequency sounds c. not experience any difference in your hearing ability d. none of the above
Saturday, October 27, 2012 at 6:18pm

biology
When the stereocilia of a hair cell in the inner ear bends, it causes: a. potassium ions to enter the hair cell b. you to hear low frequency sounds c. chloride ions to leave the basilar membrane d. all of the above
Saturday, October 27, 2012 at 6:14pm

biology
Explain how you might determine the role of an essential developmental gene using the following as a guide: *use of model organism? Why? *Use of conditional knockouts/knockouts/hypomorphic allele/null allele/ RNAi? Why? *locate its products, mRNA and protein *effects if ...
Wednesday, October 24, 2012 at 3:36pm

Biology
1)Animal cells prefer to be in isotonic solution, while plant cells prefer to be in hypotonic solution. Explain what this means and why it is so. 2.) In terms of Gibbs free energy, what does “unstable” mean? Also, give at least two additional ways to say that a ...
Wednesday, October 24, 2012 at 12:10pm

Biology
WHY WOULD PLANT CELLS HAVE 1 LARGE CENTRAL VACUOLE AND NOT SEVERAL SMALL ONES LIKE IN AN ANIMAL CELL?
Tuesday, October 23, 2012 at 9:40pm

Biology
WHY WOULD PLANT CELLS HAVE 1 LARGE CENTRAL VACUOLE AND NOT SEVERAL SMALL ONES LIKE IN AN ANIMAL CELL?
Tuesday, October 23, 2012 at 9:38pm

Biology
HOW DOES A CELL WALL HELP WITH “TURGOR PRESSURE?”
Tuesday, October 23, 2012 at 9:30pm

Biology
WHAT CELL PART AIDS IN MOVEMENT AND INCREASES THE SURFACE AREA?
Tuesday, October 23, 2012 at 9:21pm

Biology
WHAT ORGANELLE WILL BE USED DURING CELLULAR REPRODUCTION TO HELP ANCHOR THE SPINDLE FIBERS?
Tuesday, October 23, 2012 at 9:19pm

Biology
WHAT ORGANELLE AIDS IN TRANSPORTING SUBSTANCES?
Tuesday, October 23, 2012 at 9:10pm

Biology
WHAT ORGANELLE IN THE ANIMAL CELL AIDS IN DIGESTING OLDER CELL PARTS AND WASTES?
Tuesday, October 23, 2012 at 9:02pm

Biology
WHERE IN AN ANIMAL CELL IS WATER STORED?
Tuesday, October 23, 2012 at 9:01pm

Biology (cell-molec)
You wish to perform a restriction digest in a 20uL volume. Your DNA is 0.20 ug/uL and you wish to digest 1.0 ug. Your restriction enzyme is provided as 0.2 U/uL. Fill in the appropriate volumes: H2O, 10Xbuffer, DNA, and restriction enzyme. Please show work. I'm more ...
Monday, October 22, 2012 at 5:43pm

Biology
Explain why the pH scale stretches between the numbers 0 to 14.
Friday, October 19, 2012 at 7:11pm

12th science (mathbio) biology
Two plants biological information
Thursday, October 18, 2012 at 4:14am

Biology
What is the probability that any two humans with the same parents will be identical(other than identical twins)for each parent's gametes?
Wednesday, October 17, 2012 at 11:09pm

Biology
How do variations arise during meiosis?
Wednesday, October 17, 2012 at 10:59pm

Biology
What is the probability that any two humans with the same parents will be identical (other than identical twins) to make an identical zygote?
Wednesday, October 17, 2012 at 10:58pm

Biology
What is the probability that any two humans with the same parents will be identical(other than identical twins)for each parent's gametes?
Wednesday, October 17, 2012 at 10:57pm

biology
what effect would the absense of carbohydrates have on an animal cell membrane?
Wednesday, October 17, 2012 at 10:44pm

biology question??
explain how Eukaryotic cells are attached to eachother? why is it important??
Wednesday, October 17, 2012 at 10:22pm

Statistics
Thirty-two students took a 50-item Biology test. The average score obtained is 42. The next day, three students who were absent took the test and obtained 35, 39 and 43. What is the average score of the 35 students?
Wednesday, October 17, 2012 at 6:52pm

biology, test tom!
how is plants doing sesxual and asexual an adaptation?
Monday, October 15, 2012 at 7:08pm

Biology
11) The recent Nobel Prize in Physiology or Medicine was awarded based on two sets of experiments. The first of these is described in the following abstract: An important problem in embryology is whether the differentiation of cells depends upon a stable restriction of the ...
Monday, October 15, 2012 at 12:03pm

Biology
Compare and contrast fertilization in the mouse and the sea urchin – how they similar and how do they differ (and why?). Think about the structures, events and results. You might want to do this by breaking down the steps. Also address the key role of Ca2+.
Monday, October 15, 2012 at 12:02pm

Biology
Describe the process of gastrulation in the sea urchin – what molecular and cellular changes are needed to drive the movements that one observes?
Monday, October 15, 2012 at 12:02pm

Biology
We looked at four different families of signal transduction cascades. Describe three general, common features that are, in some way, part of each of these cascades.
Monday, October 15, 2012 at 12:01pm

Biology
3) The following statements are generalizations about cell signaling events made by a student with a basic knowledge of biology (a little knowledge is a dangerous thing). Your professor has requested that you tutor this student. You note that in each case there are several ...
Monday, October 15, 2012 at 12:01pm

Biology
How does long term survival of a species depend on resources that may be limited from time to time?
Monday, October 15, 2012 at 9:32am

Biology!!!!!
7)State whether the following sentences are true or false. Rewrite them if they are false. a) Every chemical reaction taking place in cells is regulated by a specific enzyme. b) Enzymes work inside cells only. c) Enzymes are carbohydates d) An active site is the part of the ...
Sunday, October 14, 2012 at 3:07am

biology
what is the relationship between interactions and interdependence
Saturday, October 13, 2012 at 2:33pm

biology project
i want a topic for investigatory project of biology...
Saturday, October 13, 2012 at 10:58am

Biology
A bacterium that synthesizes an enzyme that neutralizes an environment toxin would probably use a(n) _____________ operon to regulate production of the enzyme.
Tuesday, October 9, 2012 at 5:29pm

Finite Math
A biology quiz consists of 10 multiple -choice questions. 7 must be answered correctly to receive a passing grade. If each question has 4 possible answers, of which only one is correct, what is the probability that a student who guesses at random on each question will pass the...
Monday, October 8, 2012 at 8:15pm

Biology (PLEASE HELP)
Suppose you are studying a population of sunflowers growing in a small field. How would you determine the population density of sunflowers in a square meter of the field and in the entire field? Describe your procedure.
Monday, October 8, 2012 at 6:50pm

Biology
On your travels through eastern Canada and the United States, you notice gray squirrels everywhere. What can you infer about the squirrels' geographic range?
Monday, October 8, 2012 at 5:04pm

Biology
A group of natural populations that are reproductively isolated from other such groups and which interbreed or could interbreed with each other is called a... a. biological genus. b. natural family. c. biological species d. biological phylum.
Monday, October 8, 2012 at 1:30pm

practical biology
need a help for investigatory project i want a practical topic for this project. can anybody help me out? pls reply fast!!!
Monday, October 8, 2012 at 10:52am

Biology
1. Creates energy in the form of ATP 2. The gel-like liquid that fills the cell 3. Sorts, packages, and sends out proteins 4. Helps the chromosomes divide faster in animal cells only 5. Creates food energy from sunlight energy 6. Responsible for digestion 7. Forms the cell'...
Saturday, October 6, 2012 at 6:24pm

Biology
A detective gathers cell evidence at a crime scene. The victim is a 37 year old man, killed by a blow to the head. Closer examination of the evidence leads the detective to conclude that firewoods was used. Which of the following kinds of evidence BEST supports his conclusion...
Friday, October 5, 2012 at 11:04pm

Science-Biology
why do plants grow better under certain lighting conditions than others?
Friday, October 5, 2012 at 5:36pm

BIOLOGY
BIOLOGY MEANS?
Thursday, October 4, 2012 at 2:45am

BIOLOGY
BIOLOGY MEANS?
Thursday, October 4, 2012 at 2:45am

Science/Biology
1. Describe a SPECIFIC EXAMPLE of how increased temperature can change cellular processes. 2. What FACTORS (can be properties of animals or the environment) determine how wide a range of temperatures a species can tolerate? Be as comprehensive as you can.
Wednesday, October 3, 2012 at 3:38pm

biology
6. During division in cellular reproduction, the DNA and cytoplasm of the parent cell is distributed to two A. chromosomes. B. clones. C. simplified cells. [D. daughter cells.]
Wednesday, October 3, 2012 at 3:34pm

Biology
Scientists observe a newly established population of sexually reproducing plants growing on the shore of a small island. An observable trait of the plant has two possible phenotypes. It is determined by a single gene, with the dominant allele having complete dominance over the...
Wednesday, October 3, 2012 at 1:33pm

Biology/Science
1. Describe a SPECIFIC EXAMPLE of how increased temperature can change cellular processes. 2. What FACTORS (can be properties of animals or the environment) determine how wide a range of temperatures a species can tolerate? Be as comprehensive as you can.
Tuesday, October 2, 2012 at 4:52pm

BIOLOGY
Scientists observe a newly established population of sexually reproducing plants growing on the shore of a small island. An observable trait of the plant has two possible phenotypes. It is determined by a single gene, with the dominant allele having complete dominance over the...
Tuesday, October 2, 2012 at 1:47pm

Biology!!!!!!!!!!!!!!!!
In preparing some blood for observation with a microscope, a student puts a drop of blood into a test tube containing 2 cm3 of water. After mixing, he examines a drop of the mixture. Explain why he cannot see any blood cells under the microscope.
Tuesday, October 2, 2012 at 2:50am

Biology
How can NaHCO3 function as both the acidic component of the NaHCO3/Na2CO3 buffer system and as the basic compnent of the H2CO3/NaHCO3 buffer system?
Monday, October 1, 2012 at 10:02pm

biology
what statement describes the 1st step of ecological community it is known as? A. reed plants attract dragonflies and mayflies. B. frogs and snakes arive after emergent plants are established. C.climax trees such as ash and beech appear and eventually dominate the area. D. ...
Monday, October 1, 2012 at 7:22pm

biology
science has limitation because?
Monday, October 1, 2012 at 7:10pm

math
65 men 75 women are enfolled in calculus. There are 30 business majors, 40 biology majors, 50 computer science majors, and 20 mathematics majors. No person has a double. If a single calculus student is chosen, find the probability that that the student is not a mathematics major
Friday, September 28, 2012 at 4:44pm

Biology
Which of the following statements correctly compares the functions of a plant's roots and stem? The stem contains a high percentage of cells that provide structural support, unlike the roots. The stem is the first part of the plant to emerge from a seed, followed by the ...
Friday, September 28, 2012 at 3:29pm

Biology
1. How is both the external adn internal stimuli involved in doing this: You are hungry so you reach for an apple in a fruit bowl. 2. Why is a hypothesis important to controlled experiments? Is it becasue you are trying to explain the effect that it would have to a substance ...
Thursday, September 27, 2012 at 8:45pm

Human Biology
Tendon sheaths are used to?
Thursday, September 27, 2012 at 5:42pm

Biology
some proteins (such as HBB) can vary quite a bit from species to species. others (ex., tubulin) vary little from species to species? Why?
Thursday, September 27, 2012 at 11:13am

Biology
Some genes are said to be “linked”. Explain this term and the implications it has as to the inheritance of certain traits. Provide 2 (human) examples of linked genes? PLEASE HELP ITS A REQUEST
Wednesday, September 26, 2012 at 9:31pm

biology
What structure in the moss is like the spore case in ferns?
Wednesday, September 26, 2012 at 9:11am

biology
draw digrams of phases of meiosis in a cell with 2N=. include with both divisional sequence, but not draw any of the subdivision of the phase e.g early prophase. distinghish between chromosomes from each parent, and detail the event of synapsis, recombination and crossing over...
Wednesday, September 26, 2012 at 12:17am

Biology (PLZ HELP)
Researchers discovered that zooplankton in Narragansett Bay now graze on floating algae more actively through the winter than they ever did before. What effect do you think this might have on the annual late-winter "bloom" of algae that occurs in the water?
Tuesday, September 25, 2012 at 7:06pm

Biology
Researchers discovered that zooplankton in Narragansett Bay now graze on floating algae more actively through the winter than they ever did before. What effect do you think this might have on the annual late-winter "bloom" of algae that occurs in the water?
Tuesday, September 25, 2012 at 6:17pm

Biology
How are decomposers like a city's recycling center?
Tuesday, September 25, 2012 at 5:23pm

BIOLOGY
1.Which of the following principles is not part of Darwin's theory of evolution by natural selection? Individuals with the most favorable traits have the best chance of reproducing. More individuals are born than will be able to survive. Mutations are the ultimate source ...
Tuesday, September 25, 2012 at 4:54pm

biology
I am doing a project on Eukarya, Bacteria and Viruses where I have to explain why they are different. I know of their structural and reproductive differences but I am not sure about their uses or funtions. Please help!!
Tuesday, September 25, 2012 at 4:38pm

Biology
Write a brief description of the procedure required to make 10mL each of 2 M, 1.5 M, and 1 M NaCl solution from a 2 M Stock NaCl. Write the description.
Sunday, September 23, 2012 at 10:34pm

biology
what would happen if an excess of mg(oh)2 is used
Sunday, September 23, 2012 at 10:19pm

Biology
Need to write a brief description of the procedure required to make 900mL of a 0.5 M NaCl solution. The formula weight of NaCl is 58.4g/mole.
Sunday, September 23, 2012 at 10:13pm

biology
how can you recognize carbohydrates from a list of biological molecules
Sunday, September 23, 2012 at 2:01pm

Biology
You have a flask with 100ml of fresh media. You place 200 bacteria int he flask. Assume that the bacterai were previously growing in the same kind of media and so the lag is 0. If you knew that this species of bacteria has a doubling time of 45 min in these particular conditon...
Sunday, September 23, 2012 at 1:45pm

Biology Help!!
CT scans are not useful for studying cognitive processes because these processes occur in real time or occur in regions of the brain not accessible to CT scans Please explain.
Sunday, September 23, 2012 at 3:40am

Biology Help!!
valleys in the brain surface are called ______. sulci, fissures, or both? Give an explanation.
Sunday, September 23, 2012 at 3:20am

Biology Help!!
chemical information is transmitted from one neuron to another through neurotransmitters, terminal buttons, or axons?
Sunday, September 23, 2012 at 3:17am

Biology
Explain the medical importance of brain-mapping experiments?
Saturday, September 22, 2012 at 6:34pm

biology
how can you recognize carbohydrates from a list of biological molecules
Saturday, September 22, 2012 at 1:34pm

Biology
The first cells evolved in an atmosphere that lacked free _____________. Their metabolism resulted in the accumulation of ________________ in the atmosphere. Fill in the blanks.
Saturday, September 22, 2012 at 11:53am

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