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April 16, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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Biology
Comparing the pairs of elements listed below, choose the pair in which both atoms have nuclei with the same number of neutrons. 2311Na and 2412Mg 73Li and 94 Be 3216S and 5425Mn 147N and 168O
Sunday, February 2, 2014 at 12:30pm

Course Help meeee
All or just one what? If you enroll in pre-med, curricula differ somewhat on where you enroll and where you hope to get into med school. You will take courses (note plural) in biology, chemistry, math, the usual social science, history, English, etc. At many schools that takes...
Sunday, February 2, 2014 at 12:26am

Biology
What type of cells do not regenerate after birth?
Saturday, February 1, 2014 at 3:12pm

Biology/Science
1. A corn plant over the course of a summer can weigh 500 grams (dry biomass, after removing the water), yet it starts from a seed that weighs less than 1 gram. What is the primary source of this increased mass? What process(es) are responsible for the gain in mass? Explain. 2...
Saturday, February 1, 2014 at 1:56pm

COURSE HELP PLEASE ms sue qq
In high school, these courses are usually called Algebra I Algebra II Geometry Pre-calculus AP Calculus Biology AP Biology Chemistry AP Chemistry Physics AP Physics Work with your counselor to make sure you take the required courses for graduation AND as many of these as ...
Saturday, February 1, 2014 at 9:41am

Biology
During the ______ pathway, a host cell infected with a virus lyses and releases new virus particles. During the _______ pathway, viral DNA replicates along with the cell, but new viruses are not immediately produced. Please help!
Thursday, January 30, 2014 at 10:37pm

Biology
Viroids typically infect plant, while prions typically infect nervous system. Is this correct? thanks!
Thursday, January 30, 2014 at 10:36pm

Biology- Scientific Method
An experimenter sets out to find out how many hours of sleep a dog needs in order to catch the highest number of balls without a bounce. To test this the experimenter uses 5 dogs in the experiment and allows each dog to sleep a predetermined amount of time: dog 1: 4 hrs, dog 2...
Thursday, January 30, 2014 at 4:29pm

human and social biology
what causes the decreases of the oestrogen levels and on which days of the cycle it occured?
Wednesday, January 29, 2014 at 10:04pm

biology
GAACTGCATTGATA ______ 1 ______ 2 ______ 3 ______ 4 ______ 5 ______ 6 ______ 7 ______ 8 ______ 9 For a 6-mer, the probability of finding any particular sequence is 1/4*1/4*1/4*1/4*1/4*1/4 = 1/(46). The probability that any given 6-mer is present in 46 random sequences is near ...
Wednesday, January 29, 2014 at 9:50am

scince biology
I'm not very good at Hindi...what does "tamaku" mean?
Tuesday, January 28, 2014 at 11:45pm

scince biology
us desh ka naam likiye jaha se tamaku ka sevan shuru hoo
Tuesday, January 28, 2014 at 11:43pm

earth (or Biology?)
You collect some pond water and filter out the different organisms into separate jars. You add no food to the water, but one kind of organism is still alive long after the others have died. That species is best described as being _________.
Tuesday, January 28, 2014 at 11:02pm

biology please help
Melaine is tired all the time. No matter how much rest she gets and food she takes in she doesn't have energy. What is the organelle that is malfunctioning in her cells? Justify your answer.
Tuesday, January 28, 2014 at 3:47pm

biology
Since this is not my area of expertise, I searched Google under the key words "photosynthesis cellular respiration compare" to get these possible sources: https://www.google.com/search?client=saf​ari&rls=en&q=photosynthesis+cellular+res​piration+compare&...
Tuesday, January 28, 2014 at 12:56pm

biology
DNA is replicated in interphase.
Tuesday, January 28, 2014 at 11:11am

biology
A regular human will have 23 chromosome pairs, excluding the sex chromosomes we would have 22 pairs. So 22 pairs, meaning 44 chromosomes.
Tuesday, January 28, 2014 at 11:08am

biology
In which stage of mitosis does DNA replication occur?
Tuesday, January 28, 2014 at 10:04am

biology
How many chromosomes does a child have, excluding the sex chromosome?
Tuesday, January 28, 2014 at 9:54am

biology
B
Monday, January 27, 2014 at 7:58pm

biology
similar abd difference between photosynthesis and cellulaR RESpiration
Monday, January 27, 2014 at 7:20pm

Biology
Why does it build up in the heart tissue though?
Monday, January 27, 2014 at 4:22pm

biology
I would say that theories are somewhat of temporary ideas. It's a general statement regarding something, but it isn't necessarily 100% fact, or otherwise a "law".
Monday, January 27, 2014 at 12:58am

biology
are theories temporary ideas and i dont understand the dictionary def
Monday, January 27, 2014 at 12:53am

biology
Which list shows the correct order of locations and steps in protein processing? A. 1. endoplasmic reticulum (protein modification) 2. Golgi apparatus (protein packaging) 3. ribosome (protein synthesis) B. 1. ribosome (protein synthesis) 2. endoplasmic reticulum (protein ...
Wednesday, January 22, 2014 at 9:33pm

biology
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
Wednesday, January 22, 2014 at 4:17pm

Biology
They keep us alive and functioning? We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
Wednesday, January 22, 2014 at 4:04pm

biology PLEASE ASSIST!!
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/
Wednesday, January 22, 2014 at 2:08pm

biology PLEASE ASSIST!!
1.The structure and functions of the cell are controlled by what??? 2.Explain why DNA is able to play a role in the transmission of hereditary information. 3.State TWO functions of DNA 4. Explain how genetic fingerprinting can be used to prove is the identity of the father of ...
Wednesday, January 22, 2014 at 12:43pm

biology
I think the answer is D
Wednesday, January 22, 2014 at 10:28am

biology
What is the genetic code? a) the order of amino acids in proteins makes up the genetic code b) the order of amino acids in mRNA makes up the genetic code c) the order of nitrogen bases in tRNA makes up the genetic code d) the order of nitrogen bases in DNA makes up the genetic...
Wednesday, January 22, 2014 at 10:27am

Paye
Discuss the morphologically the importance of human tissues.
Tuesday, January 21, 2014 at 10:19pm

Paye
Discuss the physiologically the importance of human tissues.
Tuesday, January 21, 2014 at 10:18pm

Paye
Discuss the morphological and physiological characteristics of plant organs.
Tuesday, January 21, 2014 at 10:18pm

Paye
Discuss the reproductive organs of plants
Tuesday, January 21, 2014 at 10:16pm

Paye
Discuss the various classifications of plant tissue systems.
Tuesday, January 21, 2014 at 10:16pm

biology
What are membrenes?
Tuesday, January 21, 2014 at 5:13pm

biology
Plz answer my question!
Tuesday, January 21, 2014 at 4:17pm

biology
Name any 3 mineral elements that are required for the formation of membrenes.
Tuesday, January 21, 2014 at 3:46pm

Biology
I will just be as simple as possible something that needs something. so..? what do you think it is?
Monday, January 20, 2014 at 8:29pm

Biology
No. try again.
Monday, January 20, 2014 at 8:24pm

Biology
O2 is a product of: A. light-dependent reactions. B. light-independent reactions. C. light-capturing events. D. All of the choices are correct. Is the answer D?
Monday, January 20, 2014 at 8:22pm

Biology
Heart, arteries, veins and capillaries. Cardio- refers to the heart and -vascular refers to the rest.
Sunday, January 19, 2014 at 12:53pm

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
Think earth and life.
Saturday, January 18, 2014 at 5:39pm

biology
Let me help you, bio means life, ology is most of the time a study. Agri is mainly land and then I want you to think about what culture means. I hope that helped. If not I'll help you some more.
Saturday, January 18, 2014 at 5:35pm

biology
Biology is the study of __________________. Agriculture is the science of growing ______________.
Saturday, January 18, 2014 at 5:10pm

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
See previous post.
Saturday, January 18, 2014 at 3:20pm

Biology
Google it as I did on your previous post. However, don't just copy the material. Express the ideas in your own words. Although this will take more time and effort, you will learn more.
Saturday, January 18, 2014 at 3:19pm

Biology
Since this is not my area of expertise, I searched Google under the key words "how muscles work" to get these possible sources: https://www.google.com/search?client=saf​ari&rls=en&q=how+muscles+work&ie=UTF-8&o​e=UTF-8 In the future, you can find the ...
Saturday, January 18, 2014 at 3:18pm

Biology
Since I don't know what scenario you have, I can only let you know that body cells have a diploid number and mature sex cells (sperm and ova) have a haploid number. For humans that is 46 and 23, respectively.
Saturday, January 18, 2014 at 3:12pm

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
http://kidshealth.org/teen/your_body/bod​y_basics/bones_muscles_joints.html You can find your answer at the above URL
Thursday, January 16, 2014 at 10:25am

Biology
For example you skeletal system is voluntary because you think about it when you move or stretch.but your cardiac system is involuntary because you don't have to think about it. It will be really hard for you to decide how much blood to pump. Hope this helps.
Thursday, January 16, 2014 at 2:43am

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
If the dominant gene is passed down (genotype), dominant traits are passed from generation to generation (phenotype). I hope that helps.
Monday, January 13, 2014 at 12:33pm

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
How about using that as your beginning sentence?
Sunday, January 12, 2014 at 7:15pm

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
Its up to you
Friday, January 10, 2014 at 9:02pm

Biology
Any problem its up to you .
Friday, January 10, 2014 at 9:01pm

Biology
No
Friday, January 10, 2014 at 8:43pm

biology - dna
a
Thursday, January 9, 2014 at 2:30pm

biology question #2
you conduct an experiment to determine the effect of light intensity on plant growth. plant a is placed in the dark and plant b is placed in light identify the controlled group plant growth identify experimental group: effect of light is that correct?
Wednesday, January 8, 2014 at 6:56pm

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

Biology
To keep from coming to false conclusions, those not backed by empirical evidence.
Wednesday, January 8, 2014 at 11:15am

Biology
Do you have it plugged in?
Wednesday, January 8, 2014 at 11:13am

Biology
An independent variable is the potential stimulus or cause, usually directly manipulated by the experimenter, so it could also be called a manipulative variable. A dependent variable is the response or measure of results. Extraneous variables — other than the independent ...
Wednesday, January 8, 2014 at 11:10am

Biology (?)
What problem do you want to identify?
Wednesday, January 8, 2014 at 11:09am

Biology (?)
What hypothesis?
Wednesday, January 8, 2014 at 11:08am

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
unless the molecules arent tight together and there IS'NT movement that are highly selective to the barrier. -G
Tuesday, January 7, 2014 at 10:35am

Biology
Although this is not my area of expertise, I assume it is because our metabolism slows down.
Sunday, January 5, 2014 at 1:04pm

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

Science
http://en.wikipedia.org/wiki/Natural_exp​eriment http://www.biology-online.org/dictionary​/Controlled_experiment
Tuesday, December 31, 2013 at 1:33pm

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
Notice that my address is "Psy," which stands for psychology. Since this is not my area of expertise, I searched Google under the key words "carbon cycle" to get these possible sources: https://www.google.com/search?client=saf​ari&rls=en&q=carbon+...
Tuesday, December 24, 2013 at 2:34pm

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
can i put Plants take carbon dioxide and water, make a carbohydrate glucose which is the basis of all other life: they use it and we steal it from them. After glucose undergoes bio oxydation all that's left of it is carbon dioxide and water, again. Going through anaerobic ...
Monday, December 23, 2013 at 2:09pm

biology
http://eo.ucar.edu/kids/green/cycles6.ht​m
Monday, December 23, 2013 at 1:40pm

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
ok thank you
Monday, December 23, 2013 at 1:25pm

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