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August 20, 2014

Homework Help: Science: Biology

Recent Homework Questions About Biology

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biology
Can you give me a long list of smelly animals
Thursday, March 20, 2014 at 12:54am

College Math
In a group of 200 high school students, 36 are taking biology, 52 are taking Spanish, and 126 are taking neither biology nor Spanish. If one of these 200 students is to be chosen at random, what is the probability that the student chosen is taking biology but not Spanish?
Wednesday, March 19, 2014 at 2:49pm

biology
What graphic could you use to best show the checkpoints in the cell cycle? a. line graph b. bar graph c. flowchart d. map I'm not sure, I think it's c?
Wednesday, March 19, 2014 at 2:16pm

biology
In chickens, males have two Z sex chromosomes (ZZ) and females have one Z and one W sex chromosome (ZW). The mechanism for inheritance of the sex chromosomes is exactly the same as for X and Y sex chromosomes in other species. In chickens the character of ‘barred’ or...
Wednesday, March 19, 2014 at 10:14am

Biology
A poultry farmer hopes to profit from the current craze for keeping egg laying chickens as pets and wishes to increase his stock of interesting and unusual breeds. (a) The farmer crossed a pure-breeding white chicken with a pure-breeding black chicken and found that 100% of ...
Wednesday, March 19, 2014 at 10:09am

Biology
Briefly describe a portal system and give the location of two portal systems in the human body.
Tuesday, March 18, 2014 at 7:55pm

Biology
My AP Biology class is exploring alpha amylase production in germinating barley seeds. There are three treatments the seeds, or more specifically the half-grains, are put in. 1) half grains with no embryo and no GA 2) half grains with an embryo present 3) half grains with no ...
Monday, March 17, 2014 at 11:26am

Biology help please!
What is your opinion of the balance of nature hypothesis? Would the deer on the island be better off, worse off, or about the same without the wolves. Defend your position.
Sunday, March 16, 2014 at 3:36pm

Biology
When a teapot boils, we see a white cloud rising from the spout. The white cloud is composed of: A. water in the liquid phase B. water in the gaseous phase c. water molecules coming apart to from H+ and OH- ions D. H+ and OH- ions coming together to form water molecules. Explain!
Sunday, March 16, 2014 at 1:32pm

Biology
What is a mutation? How does this change the information in a DNA molecule?
Sunday, March 16, 2014 at 1:31pm

Absorption spectra of pigments
On the graph light absorption in % vs wavelength, how come the color of chlorophyll is green? Since this is an absorption spectra, isn't it supposed to absorb blue and red and not green? Rather, it reflects green??? How would the graph be different if it is a reflection ...
Friday, March 14, 2014 at 3:00pm

AP Biology
The one-pod condition (P) is dominant to the three pod condition (p). Normal leaf (L) is dominant to wrinkled leaf(l). Determine the genotypes for the two parents for all possible matings producing the following: 150 one pod normal, 147 one pod wrinkled, 51 three pod normal, ...
Friday, March 14, 2014 at 1:58pm

Biology
What is the basic unit of information in a DNA molecule? In an RNA molecule? In a polypeptide?
Friday, March 14, 2014 at 12:47pm

biology please help
whiich of these fit together A. lipase B. nuclease C. pancreatic amylase D. pepsin bread crumb stuffing butter mashed potatoes turkey
Thursday, March 13, 2014 at 3:39pm

Biology
Are my answers correct? 1. What term describes the relationship of the ankle to the hip? Medial Proximal Distal this one Superior Anterior 2. What term describes the relationship of the nose to the mouth? Superior- this one Deep Anterior Inferior Superficial
Wednesday, March 12, 2014 at 11:23pm

STATISTIC HELP
1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the questions that follow. Plain Brown Blue Green Orange Red Yellow Probability 0.3 0.1 0.1 0.1 0.02 ??? ...
Wednesday, March 12, 2014 at 1:08pm

human biology please help
The Golgi body receives proteins from the (A) __________, "packages" those proteins and "ships" them to other areas of the cell, or to the (B) ________ for secretion.
Tuesday, March 11, 2014 at 9:48pm

biology PLEASE HELP
The __________ (the cell’s outer border) controls the movement of materials into and out of the cell. It is called a lipid bilayer because of the type of molecules it is made up of and it has two layers
Tuesday, March 11, 2014 at 9:12pm

human biology need help
The Golgi body receives proteins from the (A) __________, "packages" those proteins and "ships" them to other areas of the cell, or to the (B) ________ for secretion.
Tuesday, March 11, 2014 at 8:15pm

Human biology please help
Sequences of chemical reactions, called metabolic pathways, can be sped up, or catalyzed, by (A) __________ , which are made mostly of (B) ___________.
Tuesday, March 11, 2014 at 7:58pm

biology
I'm doing a lab report for a cellular respiration experiment. My experiment involves blowing/exhaling CO2 into Bromothymol blue solution until it turns yellow, then adding drops of Nh3 (ammonia) to turn it back to its original blue color. I'm seeing if the amount of ...
Tuesday, March 11, 2014 at 5:49pm

Statistic Please Check
Check this out please Thanks Lesson 3 Unit 2 Probability Couplements, Disjoint Events and the addition Rule 1.M&M candies are great for probability. The following tables are the color distributions for the candies. Fill in each table with the missing probability and answer the...
Tuesday, March 11, 2014 at 11:44am

Please Help Me :( Science: Biology, Genetics!
Please help me with science genetics questions? Thanks to all who answer!! :) 1. Chromosome pairs contain different versions of genes, which are called ________. 2. The process in which body cells are duplicated in order to grow and repair body tissues is called _____________...
Monday, March 10, 2014 at 5:22pm

Biology
There are several questions about plasmid isolation experiment Please help me answer them img493.yukle.tc/image.php?id=5940Adsiz.j​pg
Monday, March 10, 2014 at 9:35am

Biology
Sort the terms and phrases as to whether they function in or describe primary growth or secondary growth? Place each term or phrase to the appropriate bin. If the term or phrase describes both primary and secondary growth, place it to the "both" bin. If the term or ...
Sunday, March 9, 2014 at 9:04pm

biology
mention some tests for enzyme?
Friday, March 7, 2014 at 9:44am

Biology
Please Explain thoroughly. A cell exists in a solution of 10% salt and has an internal concentration of 90% salt. Draw this scenario. Label its tonicity. Show where water would flow.
Thursday, March 6, 2014 at 6:58pm

Biology -Genetics
True or False X and Y chromosomes are found only in eggs and sperm. T or F ?
Wednesday, March 5, 2014 at 10:38pm

BIOLOGY
In angiosperms, pollen grains are A. diploid and are made when haploid gametes join in fertilization B. diploid and are made when haploid gametophytes join in pollination C. Haploid and are made when haploid spores undergo mitosis D. haploid and are made when haploid ovules ...
Wednesday, March 5, 2014 at 12:05pm

Biology
Which earthworm organ serves excretory function by excreting metabolic waste?
Monday, March 3, 2014 at 5:18pm

Biology
1. A heterotroph A. Is an autotroph B. eats other organisms C. Is a primary consumer D. A and c Is it d? 2. A scavenger A. Is an autotroph B. eats decomposing matter C. Kills animals D. All of the above Is it d?
Sunday, March 2, 2014 at 12:44pm

Biology
What are secondary consumers considered as? Are the carnivore, omnivore, herbivore. Hint: there are two answers
Sunday, March 2, 2014 at 12:31pm

Biology
Which of the following is correctly matched with its tissue system? cortex/dermal tissue system cuticle/vascular tissue system phloem/dermal tissue system stele/vascular tissue system>>>> my choosen answer
Friday, February 28, 2014 at 9:00pm

biology
list all the molecules in the process transcription
Friday, February 28, 2014 at 7:43pm

BIOLOGY
Can an individual organism change its own genes?
Thursday, February 27, 2014 at 9:27pm

Biology
Conducting cells in xylem are: Sieve tube elements Tracheids Tracheids and vessel elements Vessel elements Tracheids and sieve tube elements please help with my homework thanks.
Thursday, February 27, 2014 at 7:56pm

Biology
Organisms that assemble their own organic molecules from water and elements that they absorb from their environment are which of the following? Is this detritivore or decomposer? I am confused by these two. thanks
Thursday, February 27, 2014 at 7:37pm

Biology
Staphylococcal nuclease (Staph Nuc) is a heat-stable, potent secretory protein that cleaves dsDNA in vitro. You have a cloned the Staph Nuc gene on pBR322 plasmid and transferred into E. coli. You have named the chimeric plasmid pBR322 with the cloned Staph nuc gene as pNuc. ...
Thursday, February 27, 2014 at 12:28pm

biology
Staphylococcal nuclease (Staph Nuc) is a heat-stable, potent secretory protein that cleaves dsDNA in vitro. You have a cloned the Staph Nuc gene on pBR322 plasmid and transferred into E. coli. You have named the chimeric plasmid pBR322 with the cloned Staph nuc gene as pNuc. ...
Thursday, February 27, 2014 at 10:57am

biology
complexity of asexual and sexual
Saturday, February 22, 2014 at 11:38am

Biology
5 reasons why conservation of natural resources are important
Saturday, February 22, 2014 at 3:45am

biology
a farmer sprays insecticide on his crops and notices that the insect pest problems disappear. a year later he tries the same insecticide only to find that he did not achieve the same result. the insect population shows resistance to the insecticide. This is an example of ...
Friday, February 21, 2014 at 12:49pm

biology, genetics
Suppose that r, red, and sc, scarlet, are two recessive eye-color mutations that lie 20 map units apart on the Drosophila X chromosome, and that each causes a red eye color in place of the wild type purple color. A. If a female from pure-breeding rr stock is mated with a red-...
Friday, February 21, 2014 at 4:18am

Biology
A typical organism that might occupy a forest in the southwestern United States is a a. Cactus b. grizzly bear c. parrot d. polar bear
Thursday, February 20, 2014 at 12:44am

Quick biology help please!!!
In natural selection why do animals die? Why do some animals die while others thrive? Why do phenotypes of a population change?
Wednesday, February 19, 2014 at 9:48pm

BIOLOGY
In natural selection why do animals die? Why do some animals die while others thrive? Why do phenotypes of a population change?
Wednesday, February 19, 2014 at 8:52pm

Biology
Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?
Monday, February 17, 2014 at 8:25pm

BIOLOGY
GIVE AN EXPLANATION OF "SIMILARITIES IN EMBRYOLOGY" give an exclamation for geography as known as distribution of organisms
Monday, February 17, 2014 at 7:21pm

Biology help
Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?
Monday, February 17, 2014 at 7:19pm

biology
what is hypertonic and how does it happen
Monday, February 17, 2014 at 12:09am

biology
what is the hypertonic hypotonic isotonic ,
Sunday, February 16, 2014 at 11:07pm

Biology
What type of cell does our brain use to control muscle movement? A)sensory neurons B)retinas C)synapses D)motor neurons I think the answer is D, but I'm not 100% sure.
Sunday, February 16, 2014 at 7:02pm

biology
how can i make my carier in torism
Thursday, February 13, 2014 at 9:49am

Biology
Can someone please help me find a website? I am doing a project on Maple Syrup Urine Disease and need to find a website that says when the disease was first discovered or how long we have known about it.
Tuesday, February 11, 2014 at 10:42pm

biology
What is a cell
Tuesday, February 11, 2014 at 11:44am

BIOLOGY
CELLS THAT HAVE DNA BUT LACK A NUCLEUS ARE MEMBERS OF THE KINGDOM? A)VIRUSES B)MONERA C)FUNGI D)ANIMILIA E)PROTISTA
Thursday, February 6, 2014 at 6:35pm

Biology
the carbon atoms in the carbon dioxide gas we breathe out come from molecules of??? please help! incredibly lost!
Wednesday, February 5, 2014 at 6:45pm

biology
The name of a binary compound ends with _____.
Tuesday, February 4, 2014 at 8:56pm

Biology - please help
A portion of DNA has the following sequence: ATACCG. What number of codons would this segment code for? A. 6 B. 3 C. 2*** D. 1 I think it is C...?
Tuesday, February 4, 2014 at 2:15pm

Biology - please help
After a strain of bacterial cells is exposed to a chemical mutagen, only 30% of the cells produce new colonies that continue to grow. Which of the following can be concluded? A. Some cells underwent advantageous mutations. B. Some cells underwent neutral mutations. C. Some ...
Tuesday, February 4, 2014 at 2:14pm

Biology
A portion of DNA has the following sequence: ATACCG. What number of codons would this segment code for? A. 6 B. 3 C. 2*** D. 1 I think it is C...?
Tuesday, February 4, 2014 at 10:05am

Biology
After a strain of bacterial cells is exposed to a chemical mutagen, only 30% of the cells produce new colonies that continue to grow. Which of the following can be concluded? A. Some cells underwent advantageous mutations. B. Some cells underwent neutral mutations. C. Some ...
Tuesday, February 4, 2014 at 9:58am

Biology:Genetics
In guinea pig, short hair (L) is dominant to long hair (l) and the heterozygous condition for yellow coat (Y) and white coat (y) gives cream coat. A short haired guinea pig is bred to long haired white guinea pig and one of the offspring is a long haired baby guinea pig. a. ...
Tuesday, February 4, 2014 at 2:11am

Biology: Genetics
In guinea pig, short hair (L) is dominant to long hair (l) and the heterozygous condition for yellow coat (Y) and white coat (y) gives cream coat. A short haired guinea pig is bred to long haired white guinea pig and one of the offspring is a long haired baby guinea pig. a. ...
Tuesday, February 4, 2014 at 1:19am

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

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

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

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 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
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

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

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
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

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