Biology and plants

Red algae are characterized by a red pigment. Can they carry out photosynthesis? Explain why or why not. What is the difference between cellular slime moulds and plasmodial slime moulds? Explain why both moss gametophytes and fern gametophytes depend on a high moisture environment. Explain how so...

Differences between many biological terms

Compare and define: 1. ascospores / conidia 2. lichens / endophytes 3. poikilohydric / rhizoids 4. gametophyte / sporophyte 5. coelom / radial symmetry 6. Annelida / Platyhelminthes 7. Malpighian tubules / metanephridia 8. African Emergence Hypothesis / Multiregional Hypothesis 9. mycorr...

Various Cardiovascular Diseases

Identify one disorder from each category listed in the attached file (one coagulation disorder, one circulatory disorder, etc). Then explain in 2-3 sentences: - The changes that occur in this system caused by disease - The changes that occur in other systems by this same disease - The method of...

Diseases in Childhood and Adulthood

Please help discuss the following: 1. Identify a disease process caused by either a parasite, bacteria, fungus, or virus. 2. What are the differences in clinical manifestations between a disease process that occurs in childhood versus adulthood? 3. Are these differences only because of vo...

Human Reproductive Biology

1. Define the following: chromosome, chromatid, centromere, autosome, sex chromosome, gene, karyotype, pheontype, genotype, allele, dominant, recessive, incomplete dominance, codominance, heterozygous, homozygous, polygenic, multiple alleles, carrier 2. Black hair is dominant over blond hair. A wo...

Cataracts and Stochastic Effects

Cataracts are a potential side effect of radiation exposure to the lens of the eye. Find three different resources that explain cataracts as a stochastic or non-stochastic effect.

Types of Specialized Connective Tissue

Bones, cartilage, and blood do not hold things together physically, like the connective tissues do. Why are all these types of tissue included in the family of connective tissues?

Understanding Birth Control

Understanding Birth Control First, list five types of birth control. Explain how each method prevents pregnancy, and discuss its effectiveness. What is the most reliable method of birth control? What is the least reliable method? Which of these methods also prevent the spread of sexually transmit...

Human and Animal Cloning

What are the risks and benefits of cloning? What are some potential uses for cloning? Could you envision using cloning technology in your own life? If so, how? What are some of the ethical problems with cloning? How do you feel about cloning animals? What about humans? Should cloning be re...

Cell Communication

When the signaling system is used, what type of signal is actually used to communicate cell-to-cell? Can different types of cells communicate with each other using signals such as this? Or do they need to be the same cell type?

Brain Bank

The brain is a terrible thing to waste. That is why Harvard has set up a centralized Brain Tissue Resource Center it calls The Brain Bank. The Brain Bank specializes in researching how the nervous system functions by analyzing real human brains. Brains donated to the Brain Bank have provided the key...

Antibiotics Types of Prokaryotes

Bacteria are a type of prokaryote that are absolutely everywhere in the world, from dirt to food, and even inside other living creatures. In the past 60 years, scientists have developed some incredible drugs, called antibiotics, to fight bacterial infections. These drugs have saved millions of lives...

Lymphatic System and Adrenal Cortex

Oh...my crazy lymphatic system! Marie sat quietly in the back of the class feeling relaxed, even though this was her first college class. "Here goes; this is the beginning of my future," she excitedly thought. As the teacher walked to the front of the room, Marie suddenly felt dizzy and broke in...

Cell Signalling Communication System

Growth is defined as an increase in size of a body part or the organism. It is usually accomplished by increasing the number of cells. Individual cells can also increase in size when not dividing. For growth to occur constructive activities must occur at a faster rate than destructive ones. Hormones...

Why do I need electrolytes?

Why Do I Need Electrolytes? Have you ever wondered why you get tired much faster on warmer days than on cold ones or why you become dizzy and weak when you are dehydrated? As you are learning, your body is more than a collection of organs. In addition to understanding where we come from and what ...

The Human Ecological Niche

Where Do We Fit? The local environment in which an organism lives is its habitat. An organism's niche is its role in the environment which includes what it eats, what eats it, what organisms it competes with, and how the abiotic components interact and influence it. A human being is the only org...

Extremity of Appendicular

I need some help in the anatomy of the appendicular: 1. What are the four parts of the upper extremity and the lower extremity of the appendicular skeleton? 2. Compare and contrast the size and function of the upper and lower extremities of the appendicular skeleton (refer to the skeleton below f...

Joints

Anatomy and Physiology 1 syniovial joints, movement. 2. Fibrous joints are either sutures or syndesmoses. What is the difference between the two? Give examples of each type. 3. A symphysis and synchondroses are two classifications of what type of joint? What are the differences between the tw...

Selling of Organs

What is the problem with wanting to sell and organ like a kidney to cover a medical expense such as removing the gall bladder in todays economy/world? Realizing that it is illegal should this be allowed in a certain circumstances that may also save someone's life? Side effects from people against it...

Acid and Alkaline Food Consumption

Eating a healthy balance of acid and alkalizing foods can help our body stay healthy and balanced. The ratio of positively charged ions (acid) and negatively charged ions (alkaline) producing Hydrogen or 'ph' is discussed.

Lac Operon - I gene

In the table below, predict (yes or no) whether or not the E. coli lac operon will be transcriptionally active in the presence or absence of glucose or lactose as indicated and respond Lactose Glucose Lac expression? No Yes Yes Yes Yes No to questions "a" and "b." a. Explain each of you...

biology

8. Determine whether the following statements are true or false. If false you must give a simple reason explaining why. a. Most prokaryotic genes have introns interspersed among the coding regions. b. Eukaryotic transcription factors bind to regulatory sequences that may be located at great d...

Genetics and Population Biology

I need help on these biology questions: 1. Mutation affect diversity with respect to the effect on alleles? 2. Sexual reproduction affects diversity with respect to the effect on alleles? 3. Population size affects diversity with respect to genetic drift? 4. Migration affects diversity with res...

Human Biology Questions

These are the only questions that I have left for my assignment. Any and all help would be greatly appreciated, anything added please cite your source. EXERCISE 1 - Serodiagnosis of Infectious Disease 1. Define serum titer. 2. What are acute and convalescent sera? Why must both be tested to mak...

UTI and Serodiagnosis

- What are the three ways in which urinary tract infections may be acquired? - What are the steps for the proper collection of a clean-catch, midstream urine sample for women? How do those steps compare or contrast to the steps for men? - What are the primary and secondary antibody responses to ...

Microbiology Case Studies

Case Study 1 Shawna was working in a physician office laboratory (POL) when a urine dipstick result indicated presence of blood and WBCs in the urine she was testing. Laboratory protocol specified that a urine culture and sensitivity (C & S) should be set up. Shawna obtained a blood agar plate f...

Enterobacteriaceae

The family Enterobacteriaceae contains some organisms living in the intestines without harming the host and some organisms that are harmful to the host. Based on your research, respond to the following: What is meant by the term "enteric pathogen"? Why are anaerobic organisms generally not s...

Infections in the eye

I have started on this homework assignment but have not found alot of information. Any help would be nice. How does such a sensitive organ protect itself against such common infections? What could compromise the eye's ability to protect itself from such infections? What are the main causes fo...