Homework Help: Science: Biology

Recent Homework Questions About Biology

biology
how do 2 neurons can communicate with each other to send messages
Wednesday, October 13, 2010 at 9:49pm

Biology
whats the easiest way to make a model of an animals blood cell?
Wednesday, October 13, 2010 at 4:33pm

Biology
Which is the most muscular and powerful chamber of the heart?
Wednesday, October 13, 2010 at 12:16am

Biology
what are 2 places genes are found in animal cells and what are 3 places genes are found in plant cells?
Tuesday, October 12, 2010 at 6:53pm

biology
what is the solvent for blood
Monday, October 11, 2010 at 8:36pm

biology
Hello, I was just wondering what the difference between anatomical and physiological. I'm reading a reserach paper that talks about how light levels 'involve both physiological and anatomical changes to the leaves.' I don't know what the difference between both...
Monday, October 11, 2010 at 11:48am

Biology/Antioxidants
Why are Antioxidants considered to be good for your health? PLEASE HELP ME UNDERSTAND THIS QUESTION!! THANK YOU! :)
Sunday, October 10, 2010 at 8:58pm

biology
between 5 degrees celcius and ten degrees celcius, which solute shows the greatest change in the amount that can be dissolved in 100 grams of water?
Sunday, October 10, 2010 at 12:47pm

English
I am responding to this .. In my high school course in biology, we are required to dissect frogs. I think this is cruel and pointless. Whatever we learn about frog's anatomy can be learned from a book. My teacher says that I must dissect the frog. My response is.. I know ...
Sunday, October 10, 2010 at 12:09pm

Biology
Why is damage to skin or muscle usually easily repaired, but damage to the brain or nervous system is not? Thanks.
Thursday, October 7, 2010 at 11:25pm

Biology
Can someone please explain how enzymes work? I need to know the parts of one too.
Wednesday, October 6, 2010 at 8:46pm

biology
what would happen if Meiosis did not occur?
Wednesday, October 6, 2010 at 6:56pm

biology
when would and organism need to undergo the process of mitosis and meiosis?
Wednesday, October 6, 2010 at 6:55pm

biology
why is the process of mitosis and meiosis both important to living organism?
Wednesday, October 6, 2010 at 6:54pm

biology
names and defines the levels of organization that an ecologist studies
Wednesday, October 6, 2010 at 5:44pm

biology
names and defines the levels of organization that an ecologist studies identifies the level that you would choose to study if you were an ecologist; 3) describes the method or methods you would use to study this level; and 4) gives a reason for your choice of method or methods
Wednesday, October 6, 2010 at 5:43pm

biology
suppose 23mL of NaOH was required. How much Carbonic Acid was neutralized? 1L of .01 NaOH contains ____ mol NaOH? lmL of .01 NaOH contains _____mol NaOH? 23mL of .01 NaOH contains _____ mol NaOH? 2 mol of NaOH react with 1 mol H2CO3 2.3 x 10^-4 mol of NaOH react with ____mol CO2
Tuesday, October 5, 2010 at 6:03pm

Biology
If oxygen is present, sugar molecules metabolize by going through: ? Please help
Monday, October 4, 2010 at 9:25pm

Biology (multiple choice!)
In a symbiotic relationship between organisms of significantly different sizes, the larger organism is called the ___________, and the smaller organism is called the ___________________.
Monday, October 4, 2010 at 2:03pm

Biology (multiple choice!)
Which metabolic category best describes Bacteria that act as decomposers? A) Chemoautotrophy B) Chemoheterotrophy C) Photoautotrophy D) Photoheterotrophy E) All of these categories apply equally well to Bacterial decomposers.
Monday, October 4, 2010 at 1:34pm

biology
Design a way to determine the effects of different concentrations of starch on the mass of dialysis tubing bags when the bags are allowed to sit water for several hours. Plan to put different concentrations of starch solutions in the bags. You may want to use iodine as a ...
Sunday, October 3, 2010 at 10:11pm

Science of Biology
What exactly is the Science of Biology?? PLEASE SOMEONE HELP ME ANSWER THIS!! :)
Sunday, October 3, 2010 at 9:56pm

Science of Biology
Name three ways that the science of biology has/does, or might impact you as an individual. SOMEONE PLEASE HELP ANSWER THIS QUESTION!!! THANKS :)
Sunday, October 3, 2010 at 9:23pm

biology
Name three ways that the science of biology has/does, or might impact you as an individual.
Sunday, October 3, 2010 at 8:40pm

Biology
In what situations would sampling work best for estimating population size, in what situations would mark and recapture work best and why?
Sunday, October 3, 2010 at 6:18pm

Biology
How does a plant growth regulator differ from a plant growth hormone?
Sunday, October 3, 2010 at 3:22pm

biology
the index of refraction of h2o is 1.33. find the angle of refraction of a beam of light in air hitting the h2o surface at an angle of 60 degrees n(air)=1.00
Sunday, October 3, 2010 at 2:20pm

Biology
I can distinguish living from non-living material? I can identify and describe five basic characteristics of life and give an example of each. I can How Dr.Penelope Boston is preparing to look for evidence of life on mars.
Sunday, October 3, 2010 at 8:50am

biology
what does it mean to say that the ratio of oxygen to carbon in fat is smaller than that in carbohydrate? i know that the formula for glucose is c6h12o6. so when they say that the ratio of oxygen to carbon in fat is smaller, what exactly is it like? So the oxygen to carbon ...
Friday, October 1, 2010 at 8:39am

biology
The only thing my biology teacher told us about the NADP (in photosynthesis light dependent reaction) is that it's a bus driver. Why is it a bus driver? Is it cos it collects the H+ ion into the light independent reaction (NADPH) then "drops" it off and returns ...
Friday, October 1, 2010 at 7:56am

science
why is it so important to people to understand cellular biology?
Thursday, September 30, 2010 at 8:35pm

Biology
The tropical rain forests that are being cleared to grow crops for biofuels normally trap _____ carbon dioxide than the crops do. A. more B. less C. the same amount of Thank You.
Tuesday, September 28, 2010 at 8:58pm

BIOLOGY
What are the CELL MEMBRANE PROTEINS ? What are the functions of the CELL MEMBRANE PROTEINS ?
Monday, September 27, 2010 at 6:49pm

Science - biology - university
A couple where both the man and woman are albino decided to have children. Remember that albinism is inherited as a rare autosomal recessive trait. To their surprise their first child had normal skin pigmentation. They eventually have two more children and they also have ...
Monday, September 27, 2010 at 1:43pm

Biology
The type of cartilage associated with bone function and development is what? I know that the elastic cartilage contains elastin which allows for elasticity and maintains shape of certain structures. Fibro is strong and rigid (strongest of 3) Hyaline cartilage provides ...
Sunday, September 26, 2010 at 10:11pm

Biology Chemistry Part
I'm trying to calculated the rate of reaction In this lab I took a 50 mL beaker and poured in 10 ml of cold distilled water into it, I then poured in 30 ml of original enzyme solution (I believed we used cold potato juice or something), I then took a piece of paper and ...
Sunday, September 26, 2010 at 7:44pm

Biology
What are the main sources of carbon dioxide in the oceans?
Saturday, September 25, 2010 at 8:11pm

Biology
almost all of the energy in an ecosystem comes from__________________.
Saturday, September 25, 2010 at 5:34pm

Biology
food chains and the energy pyramid all begin with a _____________________.
Saturday, September 25, 2010 at 5:06pm

biology
what are the seven major theories of biology sumerized
Friday, September 24, 2010 at 10:05pm

biology
How has climate change impacted the biodiversity around coral reefs?
Friday, September 24, 2010 at 6:26pm

biology
What happens to the cells of the body when large quantities of sodium ion were introduced to the blood stream?
Friday, September 24, 2010 at 2:18pm

biology
why do experiments usually require a control
Thursday, September 23, 2010 at 8:46pm

biology
in which domain should a biologist classify a single-celled organism containing a nucleus
Thursday, September 23, 2010 at 5:09pm

biology
identify the components of an ecosystem? thank you
Thursday, September 23, 2010 at 4:47pm

Biology
Eggs of Amphioxus is : (a)alecithal (b)telolecithal (c)meiolecithal (d)mesolecithal is it A ?
Thursday, September 23, 2010 at 1:06pm

Biology
Which would have more DNA an average cell of a bacterium or a human cell? And what's the reason for it having more?
Thursday, September 23, 2010 at 12:38pm

Biology
Why is phosphorus necessary for life?
Wednesday, September 22, 2010 at 9:23pm

biology
what happens to proteins dissolved in water when you heat it to 100 degrees
Wednesday, September 22, 2010 at 8:57pm

Biology
Is cyanobacteria cocci, spirilla, or bacilli shaped?
Wednesday, September 22, 2010 at 8:47pm

biology
list the paramecium, earthworm, and pumpkin stem according to their relative size from largest to smallest?
Wednesday, September 22, 2010 at 5:45pm

biology (multiple choice!)
The death by bubonic plague of about 1/3 of Europe's population during the fourteenth century is a good example of: A. Abiotic factors limiting population size B. A density dependent effect C. A time lag D. A density-independent effect E. Carrying capacity
Wednesday, September 22, 2010 at 1:47pm

biology
When considering the incresing complexity of atoms, molecules, cells, and tissues, you may notice that each step characteristics that were absent in the previous level. These characteristics, called emergent properties, demonstrate that the whole organism is more than the sum ...
Tuesday, September 21, 2010 at 11:23pm

biology
C6H12O6=180 gm to make 1M how much H2O will you need? to make a o.1M how much H2O will you need?
Tuesday, September 21, 2010 at 10:55pm

biology - Genetic probability
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. ...
Tuesday, September 21, 2010 at 8:32pm

science
Check my answers? thanks ppl 1. which of the folowing is NOT considered an organism? A an oak leaf B a spider C an elephant D a bacteria cell is it D. 2.to which domain of life do humans belong? A. animals B. eukarya C. archae D. none of the above IS IT D 3. DNA is found in ...
Tuesday, September 21, 2010 at 6:42pm

Biology
In a proper lab report, is first person allowed? Or should I avoid using "I"? Thanks.
Monday, September 20, 2010 at 9:00pm

Biology
Matching: Predation, Competition. Red tailed hawks and black racer snakes prey on the same species of rodents in the same habitat. White tailed deer eat tree leaves. Match and explain why.
Monday, September 20, 2010 at 8:23pm

Biology
Why are adaptations and why are they crucial for plant and animal survival?
Monday, September 20, 2010 at 8:21pm

Biology
Covalent bonds between nucleotides in DNA are found between: A) a phosphate group and a nitrogenous base. B) a sugar and a nitrogenous base. C) nitrogenous bases. D) phosphate groups. E) a sugar and a phosphate group. Thank you.
Monday, September 20, 2010 at 6:40pm

University Research-level Biology
Hello, this is an upper-level question, and I would sincerely appreciate help before Tuesday. I am reading a journal article, and there is one conclusion in it that I do not understand. It predicts a postsynaptic mechanism when EPSP amplitudes do not vary across trials, and a ...
Monday, September 20, 2010 at 1:50am

Biology
fatty acid is to fat as glucose is to starch glycogen cellulose all none..
Sunday, September 19, 2010 at 5:31pm

Biology
Why is the maximum resolution and magnification of a light microscope less than the electron microscope?
Sunday, September 19, 2010 at 5:13pm

biology
energy that is lost at each trophic level of an ecosystem is replenished by????
Sunday, September 19, 2010 at 4:10pm

biology
are the antipodals hapliod or diploid?
Sunday, September 19, 2010 at 1:28pm

Biology
In which of the following environments would you be most likely to find non-vascular plants: in desert soil, near the snow line on a mountain, on a sandy ocean beach, or on the forest floor? Give reasons for your answer.
Sunday, September 19, 2010 at 12:22pm

Biology
Populations are frequently NOT in equilibrium due to selection or other evolutionary forces. Imagine a population of 100 individuals. Forty-nine of the individuals are homozygous dominant for beady-eye gene, 9 are heterozygous and 42 are homozygous recessive. NOTE: The ...
Saturday, September 18, 2010 at 4:54pm

Biology
Are dicots divided into woody and herbaceous stems?
Saturday, September 18, 2010 at 4:39pm

Biology
In what ways are plasma membranes, cell walls, capsules, and sheaths only the outer limits of a cell and not the cell"s boundaries?
Saturday, September 18, 2010 at 4:38pm

Biology
In what ways are plasma membranes, cell walls, capsules, and sheaths only the outer limits of a cell and not the cell"s boundaries?
Saturday, September 18, 2010 at 4:36pm

Biology
WHat is the different between determinate and indeterminate cell differentiation?
Saturday, September 18, 2010 at 2:57pm

Biology
Why are the intestinal lenghts of algae-eating tadpoles and insect-eating adult frogs so different?
Friday, September 17, 2010 at 8:53pm

CP Biology
At what temperate are potassium nitrate and potassium chloride equally soluble?
Thursday, September 16, 2010 at 9:50pm

biology
why is the early christian tomb painting important to the history of art, what's it's influence, what is it's sugnuficance, why is it impt to us today?
Thursday, September 16, 2010 at 6:01pm

Biology 9th grade
How do you describe homeostasis?
Thursday, September 16, 2010 at 5:50pm

biology
1. Which bond will comes apart in water? answer: ionic
Wednesday, September 15, 2010 at 11:59pm

Biology
does the distance of the star of our planet impact the brightness of the star in sky?
Wednesday, September 15, 2010 at 4:13pm

biology
Which macromolecules were present in your saliva and food choices? Explain why you think you got the results you did.
Wednesday, September 15, 2010 at 10:38am

Biology
If the hydroxide ion concentration in a lake is 10‐10 M what is the lake’s pH?
Tuesday, September 14, 2010 at 5:26pm

biology
how does a hypothesis help scientists understand the natural world?
Tuesday, September 14, 2010 at 4:28pm

biology
A solution of the enzyme amylase was added to a solution of starch and kept at 25C. The starch was broken down by hydrolysis. Explain how you would determine the rate of hydrolysis.
Monday, September 13, 2010 at 11:05pm

geometry
At rosemead high school, 94 students take biology, 86 take ethnic studies, and 95 take geometry. thirty-seven students take both biology and geometry, 43 take geometry and ethnic studies, and 42 take ethnic studies and biology. twenty eight students take all three subjects. ...
Monday, September 13, 2010 at 9:25pm

biology
_________ occur when bonds are broken or formed
Monday, September 13, 2010 at 9:17pm

biology
an atom that gains for loses electrons has an electrical charge and is called an _____.
Monday, September 13, 2010 at 9:10pm

biology
Which of the following problems do immigration and emigration pose for demographers?
Monday, September 13, 2010 at 9:17am

biology
transport and respiration explain in depth
Sunday, September 12, 2010 at 7:14pm

BIOLOGY
How to create a dichotomous key? I have an assignment on how to create a dictomoous key with this ten different things' Hornet, Leech,salamander,iguana,tulip plant,pig,paramecium,pinetree,housefly,MUSHROOM could someone help me with this
Saturday, September 11, 2010 at 4:29pm

Biology
Hydrogen= 1 proton, 0 Neutrons, 1 Electrons and 1 electrons in outer shell. is correct!
Friday, September 10, 2010 at 8:35pm

space
You are designing a web page for your school's biology club. You want to include photos of the members on the page, which has a width of 640 pixels. You've decided that the left and right margins should be 24 pixels each and the space between each picture should be 16...
Friday, September 10, 2010 at 6:24pm

Biology
Which of the following is not a terminal electron acceptor in anaerobic respirations? a)nitrite b)carbon dioxide c)hydrogen sulfide d)sulfate e)nitrate Question 2 Which of the following is not an end product of fermentation? a)pyruvate b)none of the answers are correct c)...
Friday, September 10, 2010 at 12:41pm

Biology
My question is about meiosis, well its not really a question I wanted to know if I was going in the right direction. On my assignment it asked what would happen if meiosis did not occur? If meiosis did not occur the number of choromosomes would continue to accumilate result it...
Thursday, September 9, 2010 at 10:07pm

biology
Are all mixtures solutions? Are all solutions mixtures? Give an example.
Thursday, September 9, 2010 at 6:36pm

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?
Thursday, September 9, 2010 at 6:34pm

Biology
I need help with a couple of questions. I have included what I think the answers are. Could you let me know how I did? 1- A woman who recently came home from a tropical vacation now has abdominal pain and diarrhea. Her blood test results show an elevated eosinophil level. ...
Wednesday, September 8, 2010 at 7:41pm

biology
In which generation does meiosis occur in the animal life cycle?
Wednesday, September 8, 2010 at 7:36pm

9th grade biology
How do macromolecules carry out the function of life within a cell?
Wednesday, September 8, 2010 at 7:10pm

9th Grade Biology
How do macromolecules carry out the function of life?
Wednesday, September 8, 2010 at 7:04pm

biology
what are the advantages of beginning with RNA versus DNA?
Wednesday, September 8, 2010 at 4:07pm

Biology
What are five specific examples of Interdependence from the book "Silent Spring" by Rachel Carson? OR What are examples of steps in the scientific process found in "Silent Spring"?
Wednesday, September 8, 2010 at 2:03pm

biology
WHAT CHARGE ARE PROTONS
Tuesday, September 7, 2010 at 9:32pm

biology
what word means "generation to generation change in the proportion of different inherited genes in a population?"
Tuesday, September 7, 2010 at 6:35pm

biology
the atomic mass =the number of _________+ the number of
Tuesday, September 7, 2010 at 6:18pm

Biology
Which of the following is a polymer of an amino sugar? a.) cellulose b.) chitin c.) glycogen d.) starch
Tuesday, September 7, 2010 at 6:06pm

Biology
In pine, both the staminate and ovulate cones occur on the same tree, but not on the same branch. The ovulate cones are usually at the top of the trees, so that pollen from their own tree will not fall onto and fertilize the eggs. Why would this be an advantage?
Monday, September 6, 2010 at 5:43pm

Biology
What is the advantage of producing single sex gametophytes (heterospory) and what is the advantage of producing a bisexual gametophyte (homospory)?
Monday, September 6, 2010 at 5:40pm

biology
what does DNA stand for?
Sunday, September 5, 2010 at 2:12pm

biology
what is an enzyme?
Sunday, September 5, 2010 at 2:01pm

Biology
Profiles of which component of the membrane may be used to identify certain kinds of pathogens? a)proteins b)polysaccharides c)leaflets d)phospholipids e)fatty acids Barely ____________% of all microbial species can be cultured in the laboratory. a10 b)25 c)1 d)50 e)0.1 Which...
Friday, September 3, 2010 at 7:31pm

Biology
Which onf of the following statments about sense resceptors is trus? A) Chemicals, light and pressure convert stimuli into electrical impluses. B) Electrical impluses within the nerve pathways trigger an awareness of stimuli in the sensory receptors. c) Sensory receptors are ...
Friday, September 3, 2010 at 5:27am

SCI/275
Hello, I would like for someone to read my Final for my class SCI/275. The assignment is: Final Project: Mitigation Strategies and Solutions (Due Sunday in the Assignment Section of eEcampus) • Resource: Appendix A • Use the topic you chose as an environmental ...
Thursday, September 2, 2010 at 2:16pm

Biology
how many e. coli could you line up, end to end, in one mm, assuming the E. Coli is 2 micrometers long?
Thursday, September 2, 2010 at 1:29pm

planning
Ms. Sue, you told me last time to search up my college to see what courses are required for hygienist, and so this is what I got. 2. The course choices that I make today lead to the fulfillment of this dream by them providing all the knowledge that I need to know to become ...
Wednesday, September 1, 2010 at 3:33pm

anthropology
What ethical challenges come up when studying another culture? How does one balance the fact that anthropology is part social science, part humanity, and part biology?
Wednesday, September 1, 2010 at 12:58pm

biology;zoology
What do you think the embryological steps we see in the early development of the invertebrates tells us about evolutionary history? How did those steps evolve? Please use specific examples and be prepared to defend your answer.
Wednesday, September 1, 2010 at 4:02am

Biology
Which one of the following statements about sense receptors is true? A)Chemicals, light and pressure convert stimuli into electrical implses. B) Electrical impulses within the nerve pathways trigger an awareness of stimuli in the sensory receptors C)Sensory receptors are ...
Tuesday, August 31, 2010 at 11:56pm

Biology
The left hemisphere of the brain contains regions that are: A) associated with negative emotions, such as fear and sadness B) active when language is processed C) associated with the tendency to withdraw from others D) active during the creation of art and music I chose B
Tuesday, August 31, 2010 at 11:19pm

Biology
One part of the brain if stimulated during adolescence, will form two distint regions. The area of the brain is referred to as: A) the occiptal lobes B) the pituitary glands C) Broca's area D) the parietal Lobe I am unsure of what the answer is, although if I were to take ...
Tuesday, August 31, 2010 at 11:13pm

Biology
What is the name given to the types of organisms that exclusively use aerobic cellular respiration to break down glucuse to produce ATP for energy? Provide three specific examples
Tuesday, August 31, 2010 at 11:57am

biology
In signal transduction there are three domains transmembrane, extracellular, and intracellular domain. In each domain would you expect to find polar or nonpolar amino acids in the three domains.
Tuesday, August 31, 2010 at 10:35am

Biology
If it happens that a neurotransmitter binds to a receptor site and produces a negative voltage, the probablity: A) that the neurons are densely connected increases B) of an excitatory response increase C)That the receiving neuron will fire decrease D)that the transmitting ...
Tuesday, August 31, 2010 at 12:37am

Biology
Janet's boss calls her into the office to discuss why see failed to complete her project for the big meeting this afternoon. Janet's sympathic nervous system: A) makes her thoughts race for an excuse B) Makes her start to perspire C) Enables her to walk in upright D) ...
Tuesday, August 31, 2010 at 12:30am

Biology
Male erection is an example of ______. No thought or emotion is required for it to occur, but conscious control can influence it. A) peripheral nerves B) sensory nerves C) a spinal reflex D) A sexual reflex I chose choice A because the book states the following " sensory ...
Tuesday, August 31, 2010 at 12:24am

biology
what is large-scale fermentation?
Monday, August 30, 2010 at 11:47pm

planning
In three to five sentences, answer the following questions. 1.Where do I picture myself five years from now? What am I doing? Where am I going? 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream? 1. Five years from ...
Monday, August 30, 2010 at 3:42pm

AP Biology
What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels? I don't know what it's asking to start with and can't find anything relevant online, in my textbook or in my study guide! Since it says levels, I think it ...
Saturday, August 28, 2010 at 5:54pm

biology
do some seeds have no cotyledons?
Thursday, August 26, 2010 at 10:48am

biology
what is the geologic time scale
Thursday, August 26, 2010 at 12:52am

biology
what is lamarck's theory
Wednesday, August 25, 2010 at 11:07pm

Biology
Some questions on a review that I have no idea! Describe what the earth looked like when it first formed? Why was the presence of oxygen so important keep in mind aerobic,anaerobic respiration and the amount of ATP produced?
Wednesday, August 25, 2010 at 9:53pm

biology
For each of the following listed below, explain how it enhances the plants ability to survive and reproduce in a terrestrial environment. B) Pollen C) Waxy cuticle
Wednesday, August 25, 2010 at 1:15pm

Biology
Should humans strive to preserve a representative sample of all biomes or aquatic zones?
Wednesday, August 25, 2010 at 1:00pm

biology
is hypothesis accepted if can't be proven wrong?
Wednesday, August 25, 2010 at 12:46am

biology
Over a period of time what happens to carrots if placed in water and salt?..
Tuesday, August 24, 2010 at 9:19pm

Biology
Lisst some nonliving things and tell what characteristics each has in common with a living thing
Tuesday, August 24, 2010 at 9:49am

Biology Diffusion
This is what i read from wikipedia: "Dialysis tubing is not permeable to glucose." Is that true? Visking tubing (Dialysis tubing) DOES allow glucose molecules to pass through it right?? So what types of molecules can pass through visking tubing? Can someone tell me ...
Tuesday, August 24, 2010 at 8:02am

biology
I need a general principle found to be consistent through the following systems so I can describe the beneficil aspect of it for each system: muscles, the circulatory system, the respiratory system, the kidneys, and digestion. I find something and then come up one system short.
Saturday, August 21, 2010 at 2:50pm

biology
discuss the similarities and differences between respiration, defecation and the formation of urine with regard to waste disposal. I can only come up with one in each category!
Saturday, August 21, 2010 at 7:50am

biology
imagine that you go to a party with a friend who starts drinking achohol. describe, step by step, the effects to that individual as he or she drinks more and more alcohol as the evening progresses and the long term consequences that can result from alcohol consumption.
Friday, August 20, 2010 at 4:13pm

biology
explain why scientists look at the health and population of organisms to measure to effects of pollution in an ecosystem instead of directly measuring the concentration of chemical in the environment.
Thursday, August 19, 2010 at 6:30pm

ALL OF JISHKA STAFF
Hello I had a couple of questions and was woundering if you have staff members that are teaching or have taught AP BIOLOGY AP PHYSICS B AP CALCULUS AB AP CHEMISTRY I was told that the AP BIOLOGY teacher had gotten extremly ill =(, has he come back? Also can you tell me if you ...
Thursday, August 19, 2010 at 2:07pm

biology
Are antibody synthesized by 1. B lymphocytes 2. Phagocytes 3. Helper t-lymphocytes 4. Killer t-lymphocytes Thanks, Cathrine
Thursday, August 19, 2010 at 8:12am

biology
how does caffeine affect the excretory system? I have looked all over, and I can't find an answer. Please help!
Tuesday, August 17, 2010 at 11:14pm

English (Biology Essay)
I know my english is crap any corrections suggestions cirtisims etc. would greatly be apreciated... if you know any biology and find anything that is biologically wrong that would be great as well but don't worry if you don't THANK YOU!!! im putting my initals just in ...
Monday, August 16, 2010 at 10:48pm

Biology (muscle response)
Suppose you are asleep and the doorbell rings. You stumble to your feet and move toward the door, open it and speek with your visitor. Think of the many changes occurring in your body as you awaken and respond. How does the three types of muscle tissue help? I'm having ...
Saturday, August 14, 2010 at 3:32pm

biology
give 2 examples each of situations in which you might use the following pesticides Insecticides and fungicides
Thursday, August 12, 2010 at 1:38pm

biology
explain the difference between gymnosperms and angiosperms give give 5 examples of each that are ontario native
Thursday, August 12, 2010 at 1:35pm

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