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August 30, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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Biology
What does the cardiovascular systems consist of?
Sunday, January 19, 2014 at 10:09am

Molecular cell Biology
The following chemicals have the indicated formula weights:Sucrose-342.3,Potassium dihydrogen phosphate(KH2PO40-136.09,Tris -121.14.You also have the following solutions made:20%SDS,5M NaCl,500mM EDTA.You have a 40%glycerol solution and 10X TBE.List the steps to make the ...
Saturday, January 18, 2014 at 9:55pm

biology
Pls what is the relationship between biology and agriculture
Saturday, January 18, 2014 at 5:01pm

Biology
Microorganisms develop resistance to antimicrobial drugs in a number of ways, EXCEPT A. Producing an enzyme that deactivates the antimicrobial drug B. Changing the cellular permeability to prevent the drug from entering the cell C. Interfering with the cell wall synthesis of ...
Saturday, January 18, 2014 at 4:09pm

Biology
Can you give me a website to go on to go over how to know whether you double or half the number of chromosomes given in a scenario? Thank you so much! I have a quiz tomorrow and I need all the help I could get!
Thursday, January 16, 2014 at 8:44pm

Biology
Explain the relationship among muscles, bones and joints
Thursday, January 16, 2014 at 1:53am

Biology
Explain the differences between voluntary and involuntary muscles
Thursday, January 16, 2014 at 1:53am

Biology
Discuss the classifications of muscles according to their actions
Thursday, January 16, 2014 at 1:52am

Biology
Differentiate the three classifications of muscles
Thursday, January 16, 2014 at 1:52am

Biology
Describe how the muscle work in the human body
Thursday, January 16, 2014 at 1:52am

biology
draw a diagram that shows the chromosome combinations that are possible in the haploid gametes of an organism with a diploid number of 6
Wednesday, January 15, 2014 at 9:41pm

biology
Can someone help? I don't understand gene regulation. The regulation of protein synthesis in cells involves the coordination of several different mechanisms. Discuss TWO of the specific mechanisms of gene regulation in eukaryotic cells from the list below and describe how ...
Monday, January 13, 2014 at 12:04pm

Biology
I'm in 4th grade to i need to write a hypothesis on "why do some people have similar dominant traits? i don't know how to write that either?
Sunday, January 12, 2014 at 8:37pm

Biology
what would be a good starting sentence for a hypothesis "why do some people have similar dominant traits?"
Sunday, January 12, 2014 at 7:08pm

biology
Given below is the sequence of the mRNA ready for Translation" 5' - AUG CUA UAC CUC CUU UAU CUG UGA - 3' a) what is the first codon technically known as and which amino acid does it code for? b) how many amino acid residues will make the polypeptide chain ...
Saturday, January 11, 2014 at 11:19am

biology
list at least three other factors that could reduce bias in an experiment
Wednesday, January 8, 2014 at 6:45pm

Biology
Identify/ name at least 1 biological science problem and prepare a procedure on how to solve such problem then recommend solution.
Tuesday, January 7, 2014 at 9:44pm

Biology
How will you prepare a laboratory procedure to verify the validity of the hypothesis. Give Example.
Tuesday, January 7, 2014 at 9:43pm

Biology
Why is a control set-up being done in the conduct of an experiment. Give Example.
Tuesday, January 7, 2014 at 9:40pm

Biology
Why is there a need for a scientist to know the limitations of Science?
Tuesday, January 7, 2014 at 9:38pm

Biology
How could you repair an electric fan that is not working properly? Apply Scientific Method.
Tuesday, January 7, 2014 at 9:36pm

Biology
Why do elderly people experience cold intolerance when they in fact have increased adipose tissue and more lipid storing area? I mean I know temperatures of the body is regulated by the hypothalamus along with the thyroid and all .. but what i always thought a person with more...
Saturday, January 4, 2014 at 6:40pm

Biology
The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar molecules are unable to go across unless
Saturday, January 4, 2014 at 1:17pm

biology - natural selection
Which of these is the foundation for relative dating? A. Earth is very old. B. Deeper rock strata are older. C. Radioisotopes decay at a constant rate. D. Organisms can be closely related to each other.
Thursday, January 2, 2014 at 9:49pm

biology
Research the enzyme catalase. What is its function in the human body?
Monday, December 30, 2013 at 6:36pm

biology
1. Why might the enzyme activity decrease at very high temperatures? 2. Why might a high fever be dangerous to humans? 3.What is the optimal temperature for enzymes in the human body?
Monday, December 30, 2013 at 6:32pm

biology
explain what is the carbon cycle and why its called a cycle *explain four "moves" that occur in this cycle * explain the importance of this cycle to organisms *explain the human impact and effects on this cycle when fossil fuels are burnt
Monday, December 23, 2013 at 4:21pm

biology
explain what is the carbon cycle and why its called a cycle *explain four "moves" that occur in this cycle * explain the importance of this cycle to organisms *explain the human impact and effects on this cycle when fossil fuels are burnt
Monday, December 23, 2013 at 1:36pm

biology
which of these would lead to an increase in carbon dioxide in the atmosphere a- decrease in animal respiration b- decrease in plant respiration c- an increase in photosynthesis d- an increase in auto and factory emissions 2. which activity occurs during the process of ...
Monday, December 23, 2013 at 1:34pm

biology
On a television talk show, a guest claims that people who exercise vigorously for 15 minutes or more every day are able to solve math problems more rapidly than people who have no vigorous exercise in their daily routine. Describe a controlled experiment that could be ...
Monday, December 23, 2013 at 11:52am

biology
After a family picnic, Ella dumped the ice and rock salt from the ice cream maker in the back yard. That area of yard now contains dead, brown grass. Explain why this happened, and use the words hypotonic, hypertonic, and plasmolysis in your explanation
Thursday, December 19, 2013 at 6:46pm

biology
Gene cloning can involve inserting genes into A. machines. B. humans. C. plants. D. protein. this is not D, and i dont think it's A. if i had to guess, i'd pick C but i'm unsure if it could be B as well.
Thursday, December 19, 2013 at 5:03pm

Biology
***I read the textbook assignment and I have read all the information on the lesson, however I cannot find the answer to this question. Nor can I find anything written about it anywhere in the lesson. Please help a girl out.*** True or False? There are many origins of ...
Thursday, December 19, 2013 at 12:15pm

Quick Biology help
Which two factors can cause cancer cells to form? What can be made by cells that divide too fast?
Monday, December 16, 2013 at 5:57pm

biology
Generally,mankind( I believe across all cultures) prefers to eat foods that are served hot or sometimes chilled.I have the impression that it should be more natural,beneficial and tastier to eat food as it is i.e. at room temperature, as what other animals do. Our body ...
Saturday, December 14, 2013 at 3:05pm

Biology
Why is feedback inhibition a useful thing for enzyme reactions in a cell? Are there biology tutors in this forum??
Friday, December 13, 2013 at 10:05pm

Biology
Which one has no place with the others? -glormerulus -secretion -filtration -increased blood presure
Friday, December 13, 2013 at 10:44am

Biology
How many chromosomes are in a human blood cell? What term describes a picture of the human chromosomes arranged in pairs?
Friday, December 13, 2013 at 4:34am

Biology
1) What is free gibs? 2)What is energy carriers? 3)If the inner membrate of the mitochondria leaks hydrogen what will happen?
Thursday, December 12, 2013 at 5:21pm

biology
Explain how the Punnett Square is related to probabilities, and describe what different regions of a Punnett Square represent
Thursday, December 12, 2013 at 2:08pm

BIOLOGY
Name and discuss the levels of organization in a multicellular organism starting from the basic unit or structure of life.
Saturday, December 7, 2013 at 10:55pm

BIOLOGY
How is the evolution of animals the long necked giraffe explained by Charles Darwin?
Saturday, December 7, 2013 at 10:55pm

BIOLOGY
Compare the basic principles on which the Darwin’s natural selection and Lamarck’s concepts of evolution are based.
Saturday, December 7, 2013 at 10:54pm

BIOLOGY
Differentiate plants from animals based on the following: structure, locomotion, irritability, metabolic process, waste products, growth and development, outer covering and food making processes.
Saturday, December 7, 2013 at 10:54pm

BIOLOGY
Discuss the substances needed to carry out the food making process (photosynthesis) by plants and the products of such process.
Saturday, December 7, 2013 at 10:53pm

BIOLOGY
Identify name at least one biological science problem and prepare a procedure on how to solve such problem then recommend solutions.
Saturday, December 7, 2013 at 10:18pm

BIOLOGY
How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give example.
Saturday, December 7, 2013 at 10:15pm

BIOLOGY
Why is a control set-up being done in the conduct of an experiment? Give example.
Saturday, December 7, 2013 at 10:13pm

BIOLOGY
Why are traits/scientific characteristics important in the field of science?
Saturday, December 7, 2013 at 10:11pm

BIOLOGY
How could you repair an electric fan that is not working properly? Apply the scientific method.
Saturday, December 7, 2013 at 10:10pm

BIOLOGY
Why is there a need for a scientist to know the limitations of science?
Saturday, December 7, 2013 at 10:09pm

Biology 1
Does anyone know of a Photosynthesis concept map that includes all of the following: Photons, thylakoids, reactions, sun, NADPH, carbohydrates, xanthophyll, wavelength, pigments, stroma, product, photosynthesis, NADP+, visible light, glucose, energy, glucose, energy, ...
Thursday, December 5, 2013 at 8:26pm

Biology
Do breeders observe the genotypes or phenotypes in their organisms?
Thursday, December 5, 2013 at 8:16pm

the most dangerous game by richard connell reading
i did all the question except for these 3 characterization chart w/ 5 textually supported inferences specific to protagonist and 5 textually supported inferences specific to the antagonist. static/flat character with text support of intended stereotype paragraph form dynamic/ ...
Thursday, December 5, 2013 at 4:38pm

Biology
In this assignment, you will select one of the options that you can compare a cell to and design an analogous development structure. then, you will compare the structure of your development to the organelles of the cell that you have learned about in this unit. you will draw a...
Thursday, December 5, 2013 at 3:26pm

Biology
I am doing a research paper on multiple sclerosis. Can you recommend a book that I can use in my research?
Thursday, December 5, 2013 at 10:59am

Biology
Can someone provide an example of positive and negative control in a very easy and simple example?
Wednesday, December 4, 2013 at 9:04pm

biology - dna
If a DNA double helix is gradually heated, which bonds in the molecule will break first (are the weakest)? A. bonds between the nitrogenous bases B. bonds between the bases and the sugars C. bonds between the sugar and phosphate within a nucleotide D. bonds between the sugar ...
Wednesday, December 4, 2013 at 6:48pm

BIOLOGY
Describe a series of small habitats that exist within 10 or 20 kilometers of your house and which might be subject to MacArthur and Wilson’s theory of island biogeography
Wednesday, December 4, 2013 at 1:15pm

Biology
If you were given a plant with red tomatoes, how could you figure out what its genotype is? Explain
Wednesday, December 4, 2013 at 12:20am

biology
Which provides more energy for the cell to perform its functions, cellular respiration or fermentation? Explain.
Tuesday, December 3, 2013 at 4:48pm

biology
The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo?
Tuesday, December 3, 2013 at 10:26am

biology
In a cross with a mother who carries the allele for hemophilia and a father who has normal blood clotting what would be the expected phenotypes of the offspring? A. all females normal, all males normal B. all females normal, all males with hemophilia C. all females carriers of...
Monday, December 2, 2013 at 12:23am

biology
If two parents who's blood types are both B produce a child that has blood type O, what can you say about the parent's genotypes? A. one is ii B. one is IBi C. both are IBi D. nothing, this is impossible isnt this C?
Sunday, December 1, 2013 at 11:13pm

biology
in what aspects are DNA and RNA polymerases similar?
Friday, November 29, 2013 at 12:13am

biology
Differences between bacterial and mammalian transcription?
Thursday, November 28, 2013 at 11:53pm

biology
In a cross of heterozygous RW four o'clock plants (RW x RW) what proportion of the seeds will grow to produce pink flowers? A. 0 B. 0.25 C. 0.5 D. 0.75
Thursday, November 28, 2013 at 5:41pm

biology
if i have a mutation in the 'I' region of the ara operon that can't bind to the araC protein. how is the mutation effecting the function of the operon?
Thursday, November 28, 2013 at 2:10am

Biology
What do you think, is it likely that we will insert genes for new and better properties in humans? Is it desirable? What dangers can you see with such a development?
Tuesday, November 26, 2013 at 11:08am

biology
An individual with the genetic condition cystic fibrosis has CFTR protein with the amino acid histidine (at position 482), where the normal CFTR protein has arginine. (No other changes are observed in the protein.) This is the result of a _________ mutation. Select one: a. ...
Monday, November 25, 2013 at 3:18am

biology
Which of the following is NOT true of transcription / translation processes in both bacteria and eukaryotes? Select one: a. RNA polymerase reads the template DNA strand to produce the complementary mRNA transcript. b. Translation of a polypeptide can occur before transcription...
Monday, November 25, 2013 at 3:17am

biology
Gene expression regulation by methylation of the cytosines in a promoter would be considered : Select one: a. Transcriptional regulation. b. Posttranscriptional regulation. c. Posttranslational regulation. d. Translational regulation.
Monday, November 25, 2013 at 3:17am

biology
Before entering the Krebs cycle, an intermediate molecule bonds to a 2-carbon molecule. This intermediate complex enters the Krebs cycle and combines with a 4-carbon molecule to form citric acid. The name of this molecule is ____________________. A. citrase B. FADH C. ATP ...
Sunday, November 24, 2013 at 9:49pm

biology
Oxygen becomes part of cellular respiration _________________. A. at the end of glycolysis B. at the end of the electron transport chain C. at the end of fermentation D. at the end of the Krebs cycle
Sunday, November 24, 2013 at 9:48pm

biology
Which photosystem-1 or 2-most likely evolved first?
Thursday, November 21, 2013 at 11:19pm

biology need help
1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are attracted to ...
Wednesday, November 20, 2013 at 8:59pm

biology
Pretend you are taking a tour of a factory that creates macromolecules  Describe your journey through the 4 rooms in the factory – the Carbohydrate Room, the Lipid Room, the Protein Room, and the Enzyme Room. In each room, include the following: 1. What type of ...
Wednesday, November 20, 2013 at 7:33pm

biology
1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are attracted to ...
Wednesday, November 20, 2013 at 7:27pm

biology
POLARITY COHESION SURFACE TENSION CAPILLARY ACTION UNIVERSAL SOLVENT ADHESION match definitions Because water molecules stick together, they form a thin film on the surface of pools of water, on which some organisms can walk Water molecules are able to move against the force ...
Wednesday, November 20, 2013 at 7:20pm

biology
Explain why water molecules are described as “sticky” is it because hydrogen bond that bonds together.
Wednesday, November 20, 2013 at 7:07pm

biology
Explain why water molecules are described as “sticky” is it because hydrogen bond that bonds together.
Wednesday, November 20, 2013 at 7:01pm

biology
Draw a picture of the structure of a water molecule that includes all of the following: hydrogen, oxygen, partial positive charge(s), partial negative charge(s)
Wednesday, November 20, 2013 at 6:45pm

biology
Draw a picture of the structure of an atom that includes all the following: protons, neutrons, electrons, nucleus, orbitals
Wednesday, November 20, 2013 at 6:10pm

HELP Biology
To find out which key will open a lock, you try several until one works. This kind of learning is called ________________________. I have no clue
Wednesday, November 20, 2013 at 12:03pm

Biology
The half-life of carbon-14 is 5,700 years. If a sample originally had 26 g of carbon-14, how much would it contain after 22,800 years?
Tuesday, November 19, 2013 at 6:15pm

biology - cells
Which scientist proposed that cells come from other cells? A. Hooke B. van Leeuwenhoek C. Schwann D. Virchow
Monday, November 18, 2013 at 10:50pm

biology
Which of the following is not produced in the light-dependent reactions of photosynthesis? A. NADPH B. sugars C. ATP D. oxygen
Monday, November 18, 2013 at 9:51pm

biology
What segregations comprise the cloaca, and what are their functions? How does this cloacal region differ from that of most mammals?
Monday, November 18, 2013 at 11:13am

biology
Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "single ...
Monday, November 18, 2013 at 10:19am

biology
Mutant C: Suppose an A/T base pair was inserted in between the two G/C base pairs at positions 18 and 19, marked by the letters above and below the strands. What would the amino acid sequence of the resulting protein be? Be sure to enter the sequence N- to -C from left to ...
Monday, November 18, 2013 at 10:04am

biology
Mutant C: Suppose an A/T base pair was inserted in between the two G/C base pairs at positions 18 and 19, marked by the letters above and below the strands. What would the amino acid sequence of the resulting protein be? Be sure to enter the sequence N- to -C from left to ...
Monday, November 18, 2013 at 10:02am

BIOLOGY
You plan to generate many copies of this gene by PCR. You will then insert the PCR product into the plasmid. d) Which two primers from the list below will allow you to use PCR to amplify this gene? Check the two that apply. 5'-GTGCA-3' 5'-CACGT-3' 5'-TATGG-...
Sunday, November 17, 2013 at 10:15pm

BIOLOGY
b) Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "...
Sunday, November 17, 2013 at 10:11pm

Biology: Endotoxin
Does endotoxin refer to the LPS or to lipid A?
Sunday, November 17, 2013 at 9:20pm

biology mit
b) Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "...
Sunday, November 17, 2013 at 1:53pm

biology
Which photosystem-1 or 2-most likely evolved first?
Saturday, November 16, 2013 at 9:28pm

biology
Small gene big plasmid Question 2 Part E wrong. Question 2 Part F Determine the DNA sequence of PCR products. I do not understand how to handle this problem. On home works they were wrong and the solutions were confusing. Please give me a clue.
Saturday, November 16, 2013 at 6:06pm

biology
ou sequence many of the recombinant plasmids generated. You find three mutant versions of the inserted gene. (This is likely due to errors introduced during the PCR amplification.) The sequences of the gene found in the three mutants are given below. Consider each of the ...
Friday, November 15, 2013 at 10:12am

A/P Biology
The Echinopsis mamillosa is a flowering cactus native to Bolivia. A high-rise building is built near a particular Echinopsis, filtering the amount of direct sunlight it receives. Which of the following processes is negatively affected first by the reduction in sunlight? ...
Thursday, November 14, 2013 at 10:38pm

Science! Biology 1
Question: Which of following best describes the free-energy requirements of an organism? Answer Choices: During times of hibernation large amounts of free energy are required. Free-energy demand is consistent for all heterotrophs. The organism requires free energy in all ...
Thursday, November 14, 2013 at 10:36pm

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