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Homework Help: Science: Biology

Recent Homework Questions About Biology

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?

Biology
What is the osmotic pressure of the salt solution in reverse-osmosis? Select one: a. An equilibrium state where the amount of solvent passing in opposite directions is equal b. An equilibrium state where the amount of solvent passing in one direction is greater than other ...

English
Which sentence is punctuated wrong. Who borrowed Celeste biology books? Who borrowed Celeste's biology books? Who borrowed Celestes' biology books? Who borrowed Celestes's biology books?

Biology
Which organ systems help deliver oxygen to body cells? I think that its the enodcrine and lymphatic systems the other choices are A.respitory and excratory B.muscular and immune systems C.respiratory and circulatory systems

Biology
Which of the following helps explain why fungi are now classified in a separate kingdom from plants? A. The cells of fungi are not surrounded by cell walls B. Fungi are heterotrophs that cannot make food by photosynthesis C. The cells of fungi do not contain a nucleus D. All ...

Biology
A new pesticide that inhibits egg cell development in cockroaches is being widely used in U.S. homes. As predicted, a number of common cockroaches initially declined but is now more common than it was before the pesticide was introduced. Which of the following is most likely ...

biology
How can i Describe the pathway and processes of ingestion,digestion,absorption and assimilation involved when a person has eaten a buttered polony sandwich

Biology
How can i describe how a pierce of bread is digested and assimilated into the cells of a human body thanks in advance

Biology, agriculture, economics
How much damage in dollars has Tobacco Mosaic Virus caused in the U.S. in recent years? I'm working on a paper, and I've scoured the internet, google scholar, USDA website, the DHHS, Penn Stae and I can't find anything. Need a source to site as well. Any help is appreciated!

biology
equation of photosynthesis

science or biology
Similarities in the early development of chickens and opossums suggest that these organisms share a __________. I think is common ancestor

biology o science
Very few fossils of jellyfish or their close relatives have been found. This makes it hard to trace the evolutionary history of jellyfish using the fossil record. What explains this? (1 point) Jellyfish fossils are buried deep under the ocean floor, not in land areas where ...

biology
Butane gas (C4H10) is burned to produce carbon dioxide and water vapour. If 12.8 mol of butane are completely burned, how many moles of water vapour are produced?

Molecular Biology
How large is the genome of Alcaligenes faecalis?

biology
how do cardiac action potentials initiated in the human heart

biology
the respiratory systems of mammals and birds adapted to maximise the extraction of oxygen from air. How has did this happen.

biology
A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the membrane. It would ...

biology
A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the membrane. It would ...

Biology
What is osmosis

ART Check
How would a visual effects designer working on an animated movie with human characters best use knowledge of biology? Knowledge of biology can help the designer to create accurate human features.**** Knowledge of biology can help the designer to create an action packed film ...

biology
Does Aspirin do something to the reaction of amylase with starch ?

Biology
what is an adaptive radiation

biology
1.1 The gametophyte generation in a fern plant changes to the sporophyte generation by A.fertilisation B.melosis C.asexual reproduction D.fusion of spores the answer is A.fertilisation right? 1.2 the male cone differs from the female cone in the pine in that A.only the male ...

Biology
If gametes have only one copy of a chromosome, then do egg cells have only an X chromosome?

biology
Certain insect species have become more and more resistant to insecticides. What type of natural selection is this, and how does it differ from the other types?

biology
Closed head injury: A. involves damage to the cortex, axons, and ventricles. B. reduces the risk of Alzheimer’s disease. C. can result in Parkinsonism. D. involves penetration of an object into brain tissue. I chose C

biology
__________ is the neurotransmitter released by the taste receptor cells. A. GABA B. Glycine C. Dopamine D. ATP Is it A?

biology
Which of the following is true of skeletal muscle? A. Contraction of skeletal muscle can alter blood flow through the heart. B. Skeletal muscle contraction produces movements of the body. C. Skeletal muscles pump blood throughout the body. D. Flexion of a skeletal muscle ...

Biology
Could you potentially use up all of your memory B and T cells for a specific antigen and become susceptible to that antigen again?

Biology, Chemistry
I know how to carry out an absorption spectrum I just need help on how to to prepare my test tubes and what to put in then. I am very confused and any help would be greatly appreciated. THANKS ! You will be given a sample containing an unknown concentration of protein (Bovine ...

biology
How does the plant regulate what is able to enter into the stem of the plant? Does it have something to do with the casparian strip?

biology/science
What are the biological terms for the following 1.process in biotechnology that is used to make human insulin in a bacterial cell 2.white blood cells produce antibodies in response to pathogens

biology
(purple smooth = 75, white smooth = 28, purple wrinkled = 24, white wrinkled = 8) Account for the difference between the expected and experimental values.

biology
What is the role that sensors play in the maintenance of homeostasis in the human body?

Biology
What are two roles restriction enzymes play in transformation

Biology HELP
How do you know whether something is homozygous dominant or heterozygous dominant?

Biology
Assume you had a round seed garden pea plant and you wanted to find out whether the round seed plant was homozygous or heterozygous. What would you do? (Round is dominant to wrinkled seed)

biology
I have to write an essay on about why organ donation should be mandatory in Canada. I need help thinking of arguments. Some that I have thought of are: 1. there is a shortage of organs for transplants 2. it improves the life of the recipient 3. After death organs can be of use...

biology
What is relative dating?

biology
EVOLUTION (fill in the blanks) Natural selection is the BLANK for evolution As a result of natural selection, organisms with more BLANK traits are more likely to BLANK, BLANK, and BLANK on the favorable traits to their offspring. These traits are passed on from generation to ...

biology (fill in the blanks)
Big picture of natural selection/ keep in mind… Natural selection doesn’t move in a BLANK BLANK Natural selection is not a BLANK process Natural selection isn't BLANK; Its all relative to the BLANK. Its from a study form. These are the ones I don't know.

biology
Economists were thinking that if the human population grew unchecked, there wouldn’t be enough living space and food for everyone. What was Malthus’ conclusions?

biology
‘Biologists’ suggested that organisms have been around for a long time and can change too. What was Larmarck’s conclusions?

Biology
8) Describe the difference between a prosthetic group, cofactor, and coenzyme; provide an example of each.

Biology
The metabolic pathways of organism living today evolved over a long period of time- undoubtedly in a step wise fashion because of their complexity. Considering everything you have learned to date about the evolution of life on Earth, put the following in the order in which ...

Biology
Pick the correct answer, and explain why it is correct. If the pressure in the thoracic cavity increases and the pressure in the ventricles due to venous return remains the same, A. Stroke volume will decrease B. heart rate will decrease C. Cardiac output will increase D. ...

biology/evolution
many of the orchids alive today have nectar that doesn't have any sugar in it. Why are there presently-living orchids whose nectar lacks sugar?

Biology
What does b-mercaptoethanol do to secretory proteins?If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

Biology
What is the phenotype ratio for TTyy X TtYy? Is it 8:8 for tall + yellow to tall + green?

Biology
For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d) increase surface area of ...

Biology
What does b-mercaptoethanol do to secretory proteins?If you forgot to add b-mercaptoethanol to a secretory protein, would the protein's migration likely speed up or slow down? Why?

Biology
In anaphase of mitosis, the sister chromatids are separated and pulled to the poles. How do these chromatids, which are only half of a duplicated chromosome, become chromosomes? As I understand it, mitosis produces daughter cells that are identical to the parent cells.

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Homework Help: Science

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