Biology Homework Help

How is  the circulatory system similar to a road-and-highway system?

Posted by yanie8888 May 8, 2013 at 4:14 PM via web. 1 educator answer. »

what is passive transport

Posted by user7185946 April 24, 2013 at 1:29 PM via web. 1 educator answer. »

a) The first micro-organism appears to be heterothrophic. You notice that it moves through water by using a long whip-like structure. What is...

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Which is a provision of the Endangered Species Act?

Posted by user4212042 April 17, 2013 at 9:14 PM via web. 1 educator answer. »

How can the processes of photosynthesis and cellular respiration be used to explain energy conversion?

Posted by macdavis16 April 15, 2013 at 10:23 PM via web. 1 educator answer. »

I need an example of drawing of a protein, carbohydrate and nucleic acid monomer. Also a saturated, monounsaturated and a polyunsaturated...

Posted by user7185946 April 15, 2013 at 3:40 AM via web. 1 educator answer. »

Achlorhydria is a condition in which the stomach stops producing hydrochloric acid and other secretions. What effect does achlorhydria have on...

Posted by hotmamma18 April 15, 2013 at 12:20 AM via web. 1 educator answer. »

Please  explain the relationship between the digestive, respiratory, and circulatory systems.

Posted by user100400 April 14, 2013 at 6:02 AM via web. 1 educator answer. »

What is movement?

Posted by shakeeb143 April 8, 2013 at 2:33 PM via web. 1 educator answer. »

Blue eyes are an autosomal recessive trait.  A blue eyed son is born to a brown-eyed mother and a blue-eyed father.  If these parents have...

Posted by motherof4babies April 7, 2013 at 9:40 PM via web. 1 educator answer. »

Why is the left ventricle more muscular than the right ventricle?

Posted by hotmamma18 April 3, 2013 at 2:02 AM via web. 1 educator answer. »

Why is it important for impulses from the atria to be delayed at the AV node before passing into the ventricles?

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What effect does a reduction in oxygen supply to the kidneys have on levels of erythropoietin in the blood?

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Are enterotoxins the same as exotoxins? Is the only difference that the enterotoxin affects the intestinal membrane whereas the exotoxin has a...

Posted by arabiangirl March 30, 2013 at 12:09 AM via web. 1 educator answer. »

A police officer has just stopped Bill on suspicion of driving while intoxicated. The officer asks Bill to walk the yellow line on the road...

Posted by hotmamma18 March 28, 2013 at 2:06 AM via web. 1 educator answer. »

Which of the following method of alcohol consumption would not lead to intoxication? Explain. A. INSERTION B. INHALATION C. INGESTION D....

Posted by ranger1980 March 27, 2013 at 1:23 AM via web. 1 educator answer. »

WHat occurs more frequently? DNA translocation or duplication?  

Posted by user7172460 March 22, 2013 at 1:48 AM via web. 1 educator answer. »

What  is the equation for photosynthesis?  

Posted by user8410266 March 20, 2013 at 2:24 PM via web. 1 educator answer. »

A woman's father has hemophilia (an x-linked recessive trait which results in abnormally long blood clotting times), but she has normal blood...

Posted by xkat123 March 20, 2013 at 5:04 AM via web. 1 educator answer. »

In heart health, what is early repolarization and what does it say about a person's health?

Posted by tiburtius March 18, 2013 at 12:58 PM via web. 1 educator answer. »

What may eventually happen to the body's tissues if the diet does not contain essential amino acids?

Posted by jakande March 11, 2013 at 9:03 PM via web. 1 educator answer. »

In plants, what is the name of the thick layer of cells NEXT TO the epidermis?

Posted by babfootball82 March 11, 2013 at 8:19 PM via web. 1 educator answer. »

It is said that there is no embryo formation in thallophyta. What does it mean? Does it mean that they remain unicellular?

Posted by nasirjam March 8, 2013 at 3:18 PM via web. 1 educator answer. »

Allergies and Asthma - Why are the incidence of these illnesses on the rise? Are farm children less likely to develop these illnesses than...

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A new mother notices that her 6-monthby old son has a yellow-orange complexion. Fearful that the child may have jaundice (a condition caused...

Posted by hotmamma18 February 27, 2013 at 8:52 PM via web. 1 educator answer. »

Why are ruptured intervertebral discs more common in lumbar vertebrae, and dislocations and fractures more common in cervical vertebrae

Posted by hotmamma18 February 27, 2013 at 7:32 PM via web. 1 educator answer. »

What is a coelom? Where is the coelom in humans?

Posted by faithlovehope February 20, 2013 at 5:46 PM via web. 1 educator answer. »

Explain what is meant by the terms analogy and homology with specific examples.

Posted by lro1979 February 20, 2013 at 5:34 AM via web. 1 educator answer. »

What do scientists mean by evo-devo?

Posted by lro1979 February 20, 2013 at 5:23 AM via web. 1 educator answer. »

I did an experiment in class; my hypothesis is that there will be less product when an inhibitor affects an enzyme. Tube 1: 10 drops of...

Posted by michellenguyen0208 February 20, 2013 at 3:52 AM via web. 1 educator answer. »

Explain the structure of red blood cells and their functions. Answer in detail please

Posted by user5801227 February 11, 2013 at 2:29 PM via web. 1 educator answer. »

carbohydratescan anyone explain me all about carbohydrates clearly???????

Posted by princetongirlupz February 8, 2013 at 5:51 AM via web. 1 educator answer. »

What aspects of mitosis are different in plant cells than animal cells, and why?

Posted by lro1979 February 7, 2013 at 4:22 AM via web. 1 educator answer. »

Cytokinesis is an important part of cell division – please explain it.

Posted by lro1979 February 7, 2013 at 4:14 AM via web. 1 educator answer. »

Are there animals or plants adapting to results of the human race?plants that thrive in cities or animals more adapted to citylife

Posted by sxfactor February 6, 2013 at 8:41 PM via web. 1 educator answer. »

What are three pieces of evidence for evolution based on the anatomical record?

Posted by justinyu February 3, 2013 at 6:43 AM via web. 1 educator answer. »

What evidence exists in the fossil record that links organisms together?

Posted by justinyu February 3, 2013 at 6:38 AM via web. 1 educator answer. »

Biologically speaking, why do humans like to kiss?

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Why have  organisms that can reproduce both sexually and asexually evolved to reproduce sexually in times of stress and asexually in times of...

Posted by user5265955 January 25, 2013 at 4:46 PM via web. 1 educator answer. »

Is a computer virus alive? Based on biology’s characteristics of living things, why or why not? 

Posted by lcowan6 January 25, 2013 at 2:18 PM via web. 1 educator answer. »

What are some ways that bacteria and protists are able to extract energy into a form of ATP to use for fuel?

Posted by user5265955 January 25, 2013 at 5:30 AM via web. 1 educator answer. »

How do I determine which of the following observations are testable, and how would I write a hypothesis and null hypothesis and determine my...

Posted by lcowan6 January 19, 2013 at 9:09 PM via web. 1 educator answer. »

What are the functions of the cellular organelles?

Posted by Hanan4944 January 16, 2013 at 5:39 PM via iOS. 1 educator answer. »

Why there is no splash when an otter jumps in a pond or any water body?but there is a spalsh when we jump why?

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How do the four biological macromolecules differ from one another? Summarize what "clues" you use to distinguish between these important...

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Select good response During a local inflammatory response  A) mast cells engulf particulate matter for degradation.   B) histamine is...

Posted by klosn January 8, 2013 at 1:09 PM via web. 1 educator answer. »

I have to write an 12 pages research paper on Intermediary metabolism and i dont know where to look info. Can you give suggestions about the...

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Can people be infected with methicillin-resistant Staphylococcus aureus if eating meat?

Posted by lemong January 5, 2013 at 8:04 AM via web. 1 educator answer. »

What is the path of blood through the heart from entering through a vena cava to leaving through the aorta?

Posted by mgoun January 5, 2013 at 7:20 AM via web. 1 educator answer. »

Describe the endocrine system's negative feedback mechanism.

Posted by mgoun January 5, 2013 at 7:18 AM via web. 1 educator answer. »