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July 27, 2016

Homework Help: Science: Biology

Recent Homework Questions About Biology

biology
Which of the following organelles is common to both prokaryotic and eukaryotic cells? Cytoskeleton Nucleus Nucleolus
Monday, November 30, 2015 by kevin

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test, which are the experimental results for each test? My doubt is if I should consider the pass=.6 since the first event or when it mentions that the probability is .6 and he takes three ...
Saturday, November 28, 2015 by Bet

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test,which are the experimental results for each test? Please, help me to understand.
Friday, November 27, 2015 by Bet

Biology
How can i design an experiment to determine which wavelengths of light provide the optimal energy for photosynthesis
Thursday, November 26, 2015 by Rose

Biology
How do you think increasing temperature would affect the rate of photosynthesis?
Thursday, November 26, 2015 by Rose

Math (prob)
The probability of an outstanding student pass a biology test is 60%. If he takes three test,which are the experimental results for each test? Please, help me to understand.
Thursday, November 26, 2015 by Bet

Biology
What can you say about the amount of hydrogen ions relative to the amount of hydroxide ions in a solution that has a pH of 2?
Sunday, November 22, 2015 by Malcolm

biology
A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?
Saturday, November 21, 2015 by Anonymous

Biology
6. The gene for a large single eyeball is coded by the gene sequence TTCGCTGAA. Let’s go through transcription… DNA Strand- T-T-C-G-C-T-G-A-A mRNA Strand- _____________________________ 7. Now, let’s look at the gene for green body color, which is GGACTCTAG. With...
Friday, November 20, 2015 by Anonymous

Biology Check answers
1.   Which of the following correctly describes the image below?    protein Molecule RNA Molecule amino Acid carboxylic Acid 2.   Glucose and fructose are monosaccharides that have the same chemical formula, C6H12O6. However, they do not react...
Friday, November 20, 2015 by Anna

Biology
.) CAGTGCAT _________ a) CGGTGTCT 2.) TGACTAAG _________ b) ACTGATTC 3.) GCCACAGA _________ c) GTCACGTA
Thursday, November 19, 2015 by OP

Biology
Find the complimentary DNA sequence after going through DNA replication… 1) AAGTCCAT a) ACTGAATG 2) TGACTTAC b) CGGAGTTT 3) GCCTCAAA c) TTCAGGTA
Thursday, November 19, 2015 by Anonymous

Biology
What does synthesize mean in biology
Tuesday, November 17, 2015 by Anonymous

Biology
how does a plant store the carbohydrates it produces in photosynthesis
Tuesday, November 17, 2015 by Anonymous

Mathematics
A survey of 100 students produced the following statics: 32 study mathematics, 20 study physics, 45 study Biology, 15 study mathematics and biology, 7 study mathematics and physics, 10 study physics and Biology, 30 do not study any of the three subjects 1, Present the ...
Tuesday, November 17, 2015 by Mesh

biology
The purines in DNA are A. thymine and cytosine B. thymine and guanine C. adenine and guanine D. adenine and cytosine
Tuesday, November 17, 2015 by abdu

Biology
What is the overall chemical formula for photosynthsis? 6Co2+6H2O--->C6H12O6+6O2 Where does the energy come from in photosynthesis? From Sunlight? What is the relationship between photosynthesis and respiration Photosynthesis makes the glucose that is used in cellular ...
Monday, November 16, 2015 by Anonymous

why does photosynthesis require energy
biology
Monday, November 16, 2015 by Skay

biology
how can hormones can be duplicated and transformed into medicine ?
Monday, November 16, 2015 by lilllly

biology
state one reason why the concentration of glucose in the blood decreases.
Monday, November 16, 2015 by Eman

Biology
state one reason why the concentration of glucose in the blood increases.
Monday, November 16, 2015 by Eman

biology
Describe in a short answer the history of the discovery of DNA
Monday, November 16, 2015 by lori

Biology
simulate a 24 hour day 12 hours of light 12 hours of dark how many snails and plants do you ened to keep a stable environment
Saturday, November 14, 2015 by Anonymous

Biology
Animals breathe in ___ and breathe out __ In sunlight plants take in ___ and realease __
Saturday, November 14, 2015 by Anonymous

Biology
What gas do plants give off in the light
Saturday, November 14, 2015 by Anonymous

Biology
Why don't we run out of the important gases that we need to stay alive?
Saturday, November 14, 2015 by Anonymous

Biology
Tay-Sachs disease is a hereditary disease that kills 1 in 360,000 individuals in the general population. Individuals homozygous for the defective allele have Tay-Sachs disease and die at an early age.Studies show that heterozygous individuals have a higher rate of survival ...
Friday, November 13, 2015 by Alexander

Biology
A recessive sex-linked allele (h) located on the X chromosome increases blood-clotting time, causing hemophilia. a. With the aid of a Punnet square explain how hemophilic offspring can be born to normal parents? My work: Hemophilic offspring could be born to normal parents ...
Friday, November 13, 2015 by Alexander

Biology 30
For ABO blood groups in the humans, the A and B genes are codminant. Both A and B are dominant over O a. Identify the possible blood types in the children of a man with blood type O and a woman with blood type AB. My work: The possible blood types that the children could have ...
Friday, November 13, 2015 by Alexander

Biology
How do nucleotides and hydrogen bonds affect the structure of DNA? Maybe something like nucleotides make up DNA and hydrogen bonds hold the nitrogenous bases together?
Friday, November 13, 2015 by Lana

Biology
What does it take to be a living organism? Living things share 8 characteristics that are listed in Chapter 1 of your textbook on page 19. Think of an organism or cell in which all 8 characteristics are not obvious. For example, coral looks like it does not move, red blood ...
Friday, November 13, 2015 by Pulasthi

biology
3. A cylinder and an airtight piston are used in the following experiment. The piston is pushed up and down in the cylinder and the resulting pressure of the air inside the cylinder is measured with a pressure gauge. The results of the experiment are recorded in the following ...
Thursday, November 12, 2015 by kado

William Pescod High School
History, tourism, biology and mathematical literacy What can I become with these subjects?
Thursday, November 12, 2015 by Mahmood

Biology
What is formed when water molecules breaks apart?
Wednesday, November 11, 2015 by Aly

pre algebra
in a math class with 31 students 27 earned a passing grade in a biology class with 21 students 17 earned a passing grade... what fraction of the math students earned a passing grade
Tuesday, November 10, 2015 by tiawannnia

biology
Which of the following processes releases energy to be used by a cell? a phosphate group is added to ATP to form ADP. a phosphate group is removed from ADP to form ATP. a phosphate group is added to ADP to form ATP. a phosphate group is removed from ATP to form ADP. not sure ...
Monday, November 9, 2015 by anna

biology
How can i get air in a bag, into a beaker of solution?
Thursday, November 5, 2015 by rose

Biology
If 25 individuals were alive in 1955 and 500 existed in 2013, what is r? Show work please! a) 475 b)2.99 c)0.052 d)0.029
Thursday, November 5, 2015 by Need Help Urgent

Biology (or math)
What is the surface area to volume ratio of a cube with a with of 4 cm. I think its 1.5:1
Thursday, November 5, 2015 by Joe

Biology (bobpursley)
1) Describe how comparing the anatomy of living species provides evidence of evolution. A: Comparisons of the anatomy of different types of organisms often reveal basic similarities in body structures even though the structure's functions may differ between organisms. For ...
Wednesday, November 4, 2015 by Victoria

Biology (CHECK)
Describe how comparing the anatomy of living species provides evidence of evolution. A: Comparisons of the anatomy of different types of organisms often reveal basic similarities in body structures even though the structure's functions may differ between organisms. For ...
Wednesday, November 4, 2015 by Victoria

Biology (Answer Check)
State how comparing the amino acid sequence of a protein can provide evident that evolution has taken place. A: If evolution has taken place, then, in general, species descended from a recent common ancestor should have fewer amino acid differences between their proteins than ...
Wednesday, November 4, 2015 by Victoria

Biology
Which of the following is a NOT function of a vacuole? packing of materials transport of materials storage of materials breakdown of materials I'm confused. I know that vacuoles store materials, in other words, C is not correct since it's true. But the rest are wrong ...
Tuesday, November 3, 2015 by SkatingDJ

Biology
Will a channel protein allow any molecule to pass through it
Tuesday, November 3, 2015 by Geo

Biology
What must a cell membrane have imbedded in it to allow facilitated diffusion to happen
Tuesday, November 3, 2015 by Geo

biology
Determine the effective population size of the current population located on an island. You conduct a census and determine there are about 1500. -Your initial survey indicated that there are 500 juveniles (Smaller, with no horns) on the island. What would you consider the ...
Saturday, October 31, 2015 by John

Biology
Needed to transport proteins and lipids throughout cytoplasm. Must be able to work within complicated membrane passages. Some positions involve work with ribosomes
Saturday, October 31, 2015 by Anonymous

english
eaping upstream, we fished most of the day for salmon. At the age of ten, my family took a trip to Washington, D.C. Skimming every chapter, the biology textbook made more sense. I need help with Dangling modifiers. We fished most of the day for salmon that were leaping ...
Saturday, October 31, 2015 by Jennifer

English
Are these correct sentences: Leaping upstream, we fished most of the day for salmon. At the age of ten, my family took a trip to Washington, D.C. Skimming every chapter, the biology textbook made more sense. I need help with Dangling modifiers.
Friday, October 30, 2015 by jennifer

Biology
Explain the processes that take place in the stroma including the reactants going in and the products produced from these processes in (a) bright sunlight and in (b) darkness. (c) What happens over an extended period of darkness of many days? I don't understand this I didn...
Friday, October 30, 2015 by Anonymous

biology
I allow things to enter and leave the cell. if I don't think you're helpful to the cell I wont let you in. Who am I?
Thursday, October 29, 2015 by Clarissa

Biology
what do the following do in a cell: Smooth endoplasmic reticulum Mitochondrion Ribosomes Golgi apparatus Nuclear envelope
Thursday, October 29, 2015 by Anonymous

Biology
A horse breeder has a black horse named Luca and he isn't certain about the horse's genetics. A purebred horse will be worth much more than a hybrid horse so he compiled all the information about the Luca and Luca's parents before approaching you. - Black is the ...
Thursday, October 29, 2015 by Anonymous

Biology
There are at least 4 different ways that humans have genetic variation, a. Using one of these four ideas explain why you do not look like another person in this room. b. To continue further with this thought use another one of the genetic variation ideas and explain why you ...
Thursday, October 29, 2015 by Judy

mathematics
in a class of 60 students, the number of students who passed biology is 6 more the number of student who passed chemistry. Every student passed at least 1 subject and 8 passed both subject. How many passed chemistry
Thursday, October 29, 2015 by conan

Biology
What are good ways to remember what the Cytoplasm, Golgi apparatus, vesicles, etc do? I have a hard time remembering all the cell organelles
Wednesday, October 28, 2015 by Geo

Biology
Some people experience “heartburn” when eating fatty, greasy foods (similar to the effect that is felt when eating acidic foods). Why would this occur with fats? I know fatty acids are made of carboxylic acid and if you have too much, would it make sense to say that ...
Tuesday, October 27, 2015 by Charles

Biology
The name of each job is writte in CAPS. Match each wanted ad to the cell organelle that should be getting that job. Write the name of the job, followed by the name of the organelle Are you permeable? Are you all about homeostasis? GUARD needed to regulate transport of water, ...
Monday, October 26, 2015 by Geo

Biology
The name of each job is writte in CAPS. Match each wanted ad to the cell organelle that should be getting that job. Write the name of the job, followed by the name of the organelle 1. Is green your favorite color? Do you like working only with plants? Be a valuable part of our...
Monday, October 26, 2015 by Geo

Biology
Word box : Synthesis, Lysosome, Enzymes, Mitochondrion, Cristae, self replicate, centrioles, nucleus, DNA, nucleolus, mitosis 1. The _____ inside the cell's control center are the instructions for a cell DNA? 2. During ____ the cell divides forming two identical daughter ...
Monday, October 26, 2015 by Geo

Biology
Word box : eukaryote, prokaryote, cytoplasm, cell membrane, semipermeable, cytoskeleton, endoplasmic reticulum, ribosomes, Golgi apparatus, vesicle 1. ______ are the site of protein synthesis Ribosomes? 2. When DNA is not surrounded by nuclear membrane the cell is a ____ ...
Monday, October 26, 2015 by Geo

Biology
The LEPR gene that encodes for the leptin receptor protein is approximately 23 kilo base pairs long. The receptor protein consists of 896 amino acids. A man has a mutation in an LEPR allele. Analysis of his DNA sequence for this lepr allele shows that there is a 5' GTA to ...
Monday, October 26, 2015 by Christine

biology please help bobpursley
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent...
Sunday, October 25, 2015 by Jennifer

Biology Help PLEASE
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent...
Sunday, October 25, 2015 by Jennifer

Biology Answer Check
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent...
Sunday, October 25, 2015 by Jasmin

Biology Answer Check !!!!
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent...
Sunday, October 25, 2015 by Brain

Biology Answer Check
Which of the following describes the classification of humans? A. The genus Homo and the species sapiens B. The phyla Homo and the species sapiens C. The family sapiens and the genus Homo D. The class sapiens and the genus Homo i think its A Correct or Incorrect . if so which ...
Sunday, October 25, 2015 by Jasmin

Biology Answer Check
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent...
Sunday, October 25, 2015 by david

Biology
In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant? A. 100% B. 75% C. 50% D. 25% i think its A because ...
Sunday, October 25, 2015 by samantha

biology
Which of the following statements best explains the relationship between the mitochondria and the plasma membrane? A. The mitochondria makes proteins that become a part of the plasma membrane. B. The mitochondria makes a gas that the plasma membrane uses. C. The mitochondria ...
Sunday, October 25, 2015 by john

Biology
How does chloroplasts move when placed in a different solution? I understand that chloroplasts are just randomly scattered through out the cytoplasm, but what does placing the cell in a different solution that can be hypotonic or hypertonic affect the placement of chloroplasts?
Saturday, October 24, 2015 by Lily

Biology ASAP
All I need is pretty much an analogy for the Smooth and Rough ER in a house.
Friday, October 23, 2015 by Derpy Pegasus

Biology
What's the difference between the Smooth and the Rough ER? Can you help me apply them to, say a house? Like for example, the living room is the nucleus, and the mitochondria is a generator? It's the last part in my bio project. Thanks in advance, Derpy Pegasus
Friday, October 23, 2015 by Derpy Pegasus

science, biology
1. What is/are the main factor(s) that determine(s) that your plants will grow into bean plants (or other fast-growing plants that you used for your experiment) and not some other type of plant (genetics, environment, or both)? Explain your answer.
Thursday, October 22, 2015 by kat

Regents biology
Baby chickens require a constant source of food.As chick's grow,more energy is required for daily activities.The following table gives the grams of food eaten by a chuck over a five day period:
Wednesday, October 21, 2015 by Jorge

biology
The American curl is a breed of cat that has curly ears. The allele for curly ears is dominant. Suppose a male cat with the heterozygous genotype is bred to a female cat with the homozygous recessive genotype. Predict the number of kittens that will have the phenotype for ...
Wednesday, October 21, 2015 by marie

Biology
How much sterile saline would you have to add to add to 0.25 mL of a serum sample in order to prepare 1/50 dilution of the serum?
Tuesday, October 20, 2015 by Tony

Biology
Is cooking oil healthy why or why not and are proteins more or less nutritious than fats why or why not?
Monday, October 19, 2015 by Daniela

HELP AP BIOLOGY
How would the results of the experiment be affected if you were sloppy and sometimes did not dry off the outside and/or ends of the dialysis bags prior to determining their masses? explain why this would matter.
Sunday, October 18, 2015 by Anonymous

Biology
What holds nitrogen bases together in a Double Helix? (DNA)
Saturday, October 17, 2015 by Anonymous

Biology
What do Nucleotide Chains create
Saturday, October 17, 2015 by Anonymous

Biology
Which features are common to all cells? Check all that apply. All cells have cytoskeleton lysosomes vacuoles the cytoplasm flagella and fimbriae photosynthetic membranes the plasma membrane ribosomes the cell wall genetic information (DNA) in chromosomes chloroplasts the ...
Saturday, October 17, 2015 by Anonymous

Biology
What are three sub unites or parts of a nucleotide
Saturday, October 17, 2015 by Anonymous

Biology
What are the four nitrogen bases of a DNA nucleotide
Saturday, October 17, 2015 by Anonymous

biology
A researcher wanted to know how many fish were in a dam.He caught 20 fish and marked them by clipping out a small section of their tail fins.He then released them back into dam.A few days later he caught 25 fish and found that 8 had been marked 1.estimate the total number of ...
Friday, October 16, 2015 by jeremy

biology
In an investigation to find the number of african potato plants in a field of area 6 000m^2 three plots were selected.each with an area of 10^2.Pot 1 contained three and the other plots contained seven and two african potato plans,respectively. 1.name two advantages of ...
Friday, October 16, 2015 by nicole

Biology
Cite a way the excretory system helps maintain homeostasis, besides removing wastes,water,carbon dioxide, and salts.
Wednesday, October 14, 2015 by Cassie

biology
why is anaphase the shortest stage in the cell cycle?
Wednesday, October 14, 2015 by alyssa

HELP HELP AP BIOLOGY
A. Explain the term "concentration gradient". Make sure to discuss the difference between a solution's concentration and a concentration gradient. B. An artificial cell contains 0.2 M FRUCTOSE and 0.8 M glucose, AND 2M SUCROSE. It is placed into a solution ...
Sunday, October 11, 2015 by Anonymous

Biology
I put them in order, but am not sure. Please take a look? Question: Put the following events of the adaptive immune response in the order they occur. (c) You cut yourself and bacteria enter the wound. (f) A dendrite near the cut phagocytizes some bacteria and uses MHC proteins...
Friday, October 9, 2015 by Anonymous

biology
why did dinosaurs evolve earlier than humans?
Friday, October 9, 2015 by mark

Biology
In phylogenetics, we use the terms monophyletic, polyphyletic, and paraphyletic. What do each of these terms mean? How might the concept of shared, derived traits fit with these terms? I know what each of the terms mean. I am not sure about the second question.
Thursday, October 8, 2015 by Sarah

Biology
List 3 differences between eukaryotic and prokaryotic genomes. Describe how one of these differences might impact laboratory applications. What are two issues that might arise when genetically engineering a prokaryotic cell to express a eukaryotic protein. I know three ...
Thursday, October 8, 2015 by Ana

Biology
The function of diastase and how it is affected by temperature. I got the function.. but i dont know how temperature affects diastase
Thursday, October 8, 2015 by Rose

Biology
What are the three conditions that must be met for natural selection to occur? What should happen if those three conditions are met? Define each type of natural selection, and describe what you expect to happen over time if these types of natural selection occur. Do these ...
Thursday, October 8, 2015 by Sarah

Biology
Why is the Hardy-Weinberg Theorem useful for studying evolutionary change? What are the assumptions of this model? How does it work (in other words, describe the procedure which is used and how you figure out genotype frequencies)?
Thursday, October 8, 2015 by Sarah

Biology
What 2 bio molecules are the cell membrane primarily made of?
Wednesday, October 7, 2015 by Janey

Biology
What is the difference between an environment with freshwater and an environment with pristine wates? I need to design an experiment with a shrimp that is found in freshwater but not in pristine but I don't understand what is the difference between the two. Thanks!
Wednesday, October 7, 2015 by Anonymous

Gr.11 Biology
In guinea pigs, black cot is dominant to albino. Rough coat us dominant to smooth coat. A black smooth guinea pig was mated with an albino rough guinea pig. Their offspring were black rough and black smooth. If these were the only produced over a period of years of matings, ...
Tuesday, October 6, 2015 by Helen

biology
You are preparing 500 mL of Denaturation Buffer containing 1.5 M NaCl and 0.5 M NaOH. Your stock solutions are 5 M NaCl and 6 M NaOH. How would you prepare the Denaturation Buffer? Include all of the solutions needed to make the buffer. For Nacl, C1V1=C2V2 5*V1=500*1.5 V1=150 ...
Monday, October 5, 2015 by sara

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Homework Help: Science