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Homework Help: Science: Biology

Recent Homework Questions About Biology

biology
digital readout for micropipettor for 0 7 0 in microliters?

biology
which micropipettor would be appropriate to measure 250 microliters? P20, P200, or P1000?

ap biology
why should you not rotate the volume adjuster of a micropipettor above or below the range written on the instrument? what two things could happen?

ap biology
If you have fluid in the pipet tip and want to expel it all, should you only depress the plunger to the first stop or should you continue on to the second stop? why not choose the other option? what could happen?

ap biology
if you depress the plunger to the first stop, place the tip into a solution and then release the plunger, does it withdraw the sample, expel the sample, or eject the tip?

biology
Besides coal and oil (fossil fuels) what type of rocks store a great deal of carbon?

ap biology
why should you not rotate the volume adjuster of a micropipettor above or below the range written on the instrument?

Biology (Genetics)
How would you solve these problems? I am confused about what it is asking and how to start it. A step by step process with explanation would be greatly appreciated. Also, are there any simple ways to work out the problems without getting confused, or is there a way to know ...

Biology
Based on Figure 2-4, what is the mass number of carbon? It says on the table (2-4) that carbon has 6 neutrons and 6 atomic number How do I solve this? Please help!

Biology
The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell. Which of the following changes is most likely to slow down this reaction? Adding more maltose molecules Increasing the volume of the cell Adding ...

biology
circle all the things from the list that would be included in a community. Explain why you circled those items. deer ticks mushrooms rotting leaves lady bug 3 inches of rainfall oak tree soil 75 degrees celsius kudzu 6 hours of daylight

Physics
how are the fundamental laws and principles of physics related to the complexity that we see in nature? 2) How do the laws of physics apply to other sciences such ad biology, chemistry, and earth science? Give a specific example to show the connection - is it because there ...

Biology
My mom was average height and my dad was short and mine short. I am think my genotype is heterozgous. My mom weight is average and my dad was overweight and my was average. I am think my genotype is homozygous.

Biology
My hair color is blonde and so is my parents.What is my genotype?

Biology
My mom has eye color hazel and my dad has the eye blue and my eye color is blue. Would my Genotype be homozgous? My mom hair has blonde and my dad has blonde hair and I have blonde hair would my genotype be heterozgyous? Biology - woody, Friday, Se

Biology
My mom has eye color hazel and my dad has the eye blue and my eye color is blue. Would my Genotype be homozgous? My mom hair has blonde and my dad has blonde hair and I have blonde hair would my genotype be heterozgyous?

biology
An individual who is heterozygous for Eye color would be? A.two alleles for brown eyes. B. One allele for brown eyes and one blue eyes. C.two alleles for blue eyes.d.blue eyes I am think b.

Biology
how does the number of electrons in an atom determine what kind of bond it can form?

biology
circle all the things from the list that would be included in a community. explain why you circles those items. deer ticks mushrooms rotting leaves lady bug 3 inches of rainfall oak tree soil 75 degrees Celsius kudzu 6 hours of daylight

biology
the species in a forest include moose, wolves, lichens, mosses, lake trout, mosquitoes, and spruce trees, what level of organization does this group of species form?? is it community?

Biology
Which of the following depends on bacteria?

Biology
Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? the low density of water in the solid phase water’s strong forces of adhesion water’s high specific heat water’s solvent properties Help? I can'...

Biology
1) Large/tough seeds act as a selection pressure on what trait? a. Large bills b.Large feathers c.Dark feathers d.Long tails 2) What causes the change in bill depth between 1976 and 1978? a.The lack of rain b.The persistence of only larger seeds c.Differential survival of ...

Biology
I did a lab and have been graded already. One of the questions asked us to pick good scientific questions from a list of choices. One of the choices read, "What soil properties determine the resulting color of a plant's flowers?". Note: I have changed the wording slightly. I ...

Biology
Justify why it is important to scientists to have a universal system of measurements. What does this mean? Can someone help explain it to me? I'm doing some research but I'm still confused. Please help? Thanks

biology
which of the following is a characteristic that could be applied to both living and nonliving things

biology
Disadvantages of cross pollination

Biology
Of the following, which is the most likely consequence of a manufacturing plant dumping its chemical waste into a nearby stream? increased oxygen levels in the water decreased flow rate of the stream loss of a keystone species an algal bloom <- my answer My question is ...

biology
which of the following undergoes change during a chemical reaction

biology
What type of extraction is needed to isolate integral proteins? (Hint: a type of amphipathic molecule is in this solution)

biology
What types of amino acids and domains are found in the "transmembrane" region of these proteins?

Biology
How does the "Patching and Capping" experiment verify the fluid concept of the Fluid Mosaic model?

biology-science
organism: 7 characteristics that make up all organisms biosphere: name our biospherE?

biology
how is a protein different from a complex carbohydrate

biology
why is carbon so abundant in living things when oxygen is the most abundant element on earth

Biology -- metric
Which statement best describes the significance of the number 10 in the metric system? The system is used by 10 countries There are 10 metric prefixes There are 10 base units The system is based on multiples of 10. * my answer How many places would the decimal move in a ...

biology
providing examples explain how sexual reproduction in plants has evolved to become less dependent on water?

Biology
What main region(s) of a peptide would be the major effectors of peptide folding?

Cell Biology
If three amino acids are bonded together linearly, how many molecules of water are produced?

Biology
what is the scientific meaning to the word foundation?

cp biology
include the following vocabulary when completing the concept map. be sure to PLACE THE WORDS in the correct step of the scientific method, and DISCUSS what occurs at each step. words: qualitative data quantitative data independent variable data analysis/ interpretation law ...

Biology
Why does scenedesmus colony consist of 4,8 or 16 cells?

Biology
How is a protein different from a complex carbohydrate? a.The monomers that make up a protein vary whereas the monomers that make up a complex carbohydrate are all the same. b.Proteins function as energy storage polymers whereas complex carbohydrates function to control rates ...

Biology, please help 9th
how the brain is related to human behavior and what the brain’s role is in the field of psychology.

Biology HELP!
1. Which of the following correctly identifies the composition of an oxygen atom? (1 point) 8 protons, 8 electrons, and 8 neutrons 6 protons, 6 electrons, and 6 neutrons 8 protons, 6 electrons, and 7 neutrons 6 protons, 6 electrons, and 12 neutrons 2. Which of the following ...

biology
The (**) are my answers Which of the following is not a characteristic of life? (1 point) maintains homeostasis *** composed of cells composed of atoms carries out metabolism 2. Which of the following must be true to consider something to be alive? (1 point) It must be able to...

Biology HELP!
Which of the following is true? Mark all that apply. (2 points) A hypothesis can be proved incorrect through experiment. Conclusions cannot disprove a hypothesis. Conclusions are made based on the analysis of data. Opinion is used to analyze data. A/D

Biology
a) Initial filtration occurs when blood pressure forces fluid out of the __________ and into __________. b) Blood enters the glomerulus through the __________ and leaves through the __________. c) Describe what normally passes into Bowman's capsule. d) What substances are ...

maths literacy, biology, geography, tourism
what course can i do with these subjects

Biology
1) Microscopic hairs of the windpipe are always __________. 2) The cilia of the windpipe move harmful substances __________. 3) You build a heavy gust of air when you __________ or __________. 4) Coughing and sneezing help push harmful substances from the __________.

Biology
1) Mucus traps __________. 2) The windpipe is lined with sticky __________ and microscopic __________. 3) Tiny microscopic __________ are called cilia.

Biology
1) The nose has small __________. 2) Hairs in the nose trap __________. 3) The nose makes a sticky liquid called __________.

Biology
Breaks down proteins into polypeptides and amino acids What is the component?

biology
Activates conversion of pepsinogen to pepsin. What is the component? What is the secretion?

biology
what kind of wbc is involved in the production of antibodies

Biology
Record any two of the following temperatures in your lab environment. In each case, allow the end bulb of the Celsius thermometer to remain in or on the sample for one minute. Cold tap water in a 50 ml beaker = ___ Celsius Hot water in a 50ml beaker= _____ Celsius

Science
Scientists who study abnormal animal behavior would probably know much about A. Astronomy B. biology C. Geography D. History

biology
What is cyclosis?

Biology, evolution
how does biochemical molecules show evidence of evolution?

Biology ( Ms.Sue help)
Ms.Sue I am sorry for not understanding you but I read your post and I still don't understand what the answer is. All I was asking for was a yes or no answer to my question.   Autosomes are _______ chromosomes.  A. abnormal B. homologous C. haploid D. nonsex Is it B?

Biology ( Ms.Sue help)
Sorry to bother you but am I correct for the answer homologous?

Biology ( Ms.Sue help)
   Autosomes are _______ chromosomes.  A. abnormal B. homologous C. haploid D. nonsex My guesses would be either B or D.

Biology
A large number of deer once lived on the Kalibab Plateau north of the Grand Canyon in Arizona, USA. In 1907 their predators, wolves, coyotes and pumas, were killed to protect the deer. What do you think happened after this?

Biology ( Ms.Sue help)
 A parent with type AB blood could not produce a child with type  A. AB. B. A. C. B. D. O. I am stuck!

Biology
  How does mitosis in plant cells differ from that in animal cells?      A. Plant cells lack centrosomes.">A. Plant cells lack centrosomes.B. Plant cells lack spindle fibers.">B. Plant cells lack spindle fibers.C. Animal cells lack a cell plate.">C. Animal ...

Biology
J.J. Thomson's experiments supported the existence of a particle that deflected away from a negative charge and toward a positive charge. Ernest Rutherford found that when positive particles were fired at gold foil, some of the particles deflected rather than passing straight...

Biology ( Ms.Sue help)
Which one of the following is a trans fatty acid found in most snack foods?  A. Stearic acid B. Carboxyl acid C. Oleic acid D. Elaidic acid I've been trying to find this answer all day and I have no idea.

Biology
20.   Which of these is the smallest structure?  A. Dipeptide B. Polypeptide C. Protein D. Amino acid

Biology
Are nucleus and nuclei the same thing?

Biology
An example of a nonspecific defense provided by the skin is A)antibodies. B) fever. C) proteins. D) sweat. is it B?

Biology ( Ms.Sue help)
Which one of the following reactions occurs in the cristae of the mitochondria?    A. The prep reaction   B. Glycolysis   C. The electron transport chain   D. The citric acid cycle   B?

biology
A researcher puts brine shrimp in salt water for 24 hours. What is expected of this experiment?

biology
the names of bons and cartilages in humen body

Biology
  Which one of the following reactions occurs in the cristae of the mitochondria?   A. The prep reaction  B. Glycolysis  C. The electron transport chain  D. The citric acid cycle  B? 

Biology
Why do introduced species often disrupt an ecosystem?

Biology
The water cycle is best described by which of the following statements? Water in the atmosphere must be converted to another chemical before animals can use it. The water on earth changes forms as it moves from one reservoir to another.>----- My answer As water moves ...

Biology
Which of the following biomes covers the largest area of earth? tundra marine-----> My answer grassland forest

Biology
In which case would a widely accepted scientific idea MOST likely be revised? A) when an error is found in a previous calculation B) when scientists calculate a quantity with greater accuracy C) when several well-tested findings go against the accepted idea Eliminate D) when ...

Biology
Genetic engineering is the manipulation of genes using cloning and transformation to change the gene structure. Genetic engineering has many positive outcomes. For example, A) gene therapy might cure one defect while creating another. B) genetic modification of foods can ...

Biology
   All of the rabbits, deer, and several bird species found within a field are considered to be part of a/an  A. population. B. ecosystem. C. biosphere. D. community. D?

biology help
Describe the hormeostatic control that occurs in the body of a normal person to increase blood glucose level when they are low

Biology -- repost
(To whoever posted the first time -- DO NOT use any tutor's name where YOUR name should be. Impersonation of a tutor is not allowed on this website.) What are the biological terms of the following? 1.Reproductive structure in breadmould 2.acquired immunity obtained through ...

biology help
What are the biological terms of the following 1.A diagram that show the evolutionary history of plant groups 2.hoploid cell which grows into a plant

navarro college biology
During the sequencing of dna into a protein, what is the first step?

Biology
A man who has phenylketonuria (metabolic genetic disorder) marries a woman who is heterozygous at that locus. What is the probability that their first child will have phenylketonuria? Plz help asap

Biology
Describe how the nervous system helps different parts of your body communicate with one another the moment you begin to pet a dog.

Biology
If a tall plant (TT) is crossed with a short plant (tt), what percentage of the offspring will be short?

Biology
Suggest why Ia and Ib alleles are dominant over Io allele. Why in IaIo genotype, the Io allele is masked

Biology ASAP
1.)Neurons are classified bye the... (Answer) Direction they carry impulses. I think its because the impulses go to different places, to its different neurons. 2.) Your alarm wakes you up in the morning and reminds you to get ready to go to school. Which type of neuron ...

Evolution/Biology
What does the statement "The environment directs natural selection" mean?

Biology
with an example of the peppered moths when they changed color from light to dark due to pollution, what selection pressure is this? disruptive, stabilizing or directional?

Biology
Which example best illustrates the difference between a community and a population? A)The two terms are interchangeable, a population IS a community. B)All the people in a town would be a community; all their cattle would be a population. C)All the people in a town would be a ...

biology
If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? A. A+ 1, Z + 1 B. A-1,Z-1 C. A+ 1, Z-1 D. A-1, Z + 1 My answer is B.

Biology
How a radioactive element will decay over time?

Biology
How can the mass transfer kc and ultrafiltration solvent flux be increased? Select one: a. Another stream of fluid can flow adjacent to the membrane to accumulate solute at the membrane surface b. Another stream of fluid can flow perpendicular to the membrane to accumulate ...

Biology
How does comparing the embryos of different organisms support the theory of evolution? The embryos of all organisms are identical. The stages of development of the embryos of different organisms are extremely similar, thereby suggesting common ancestors. The embryos of any ...

Biology
Why was Charles Darwin able to offer a large amount of evidence for his theory of evolution by natural selection? He compiled the fossil record. He collected data for 5 years while traveling around the world. He conducted in-depth experiments with chemicals in England. He ...

Biology
Based partially on his comparative studies of the fossils of woolly mammoths and the bones of modern-day elephants, Georges Cuvier proposed several new ideas about the history of life on earth. Which general statement can be made about this example? Through specific studies, ...

Biology
Hi, one more question to clarify: How can the mass transfer kc and ultrafiltration solvent flux be increased? Select one: a. Another stream of fluid can flow adjacent to the membrane to accumulate solute at the membrane surface b. Another stream of fluid can flow perpendicular...

biology
what is obesity? how to prevent obesity? and how to do a proper diet?

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