What life history factors influence lambda?

vitamine D play important role in calcium reabsorption

1. Which of the following DOES NOT influence the conduction velocity of an action potential

2. The relationship of an action potential (AP) to the stimulus that generates it is best described as:

Compare and contrast sexual and asexual reproduction. Explain relevance to evolution. Be descriptive on each and every similarity and difference.

Compare and contrast active and passive transport. Discuss the different forms and how they function. Be descriptive on each and every similarity and difference.  

Discuss the endosymbiosis theory. Analyze the evidence that supports the theory, and the problems that refute the theory. Please be at least 7 sentences and include all the main points.

Compare and contrast photosystem 1 and photosystem 2. Please be at least 7 sentences and be descriptive about each and every difference and similarity.

Discuss how enzymes function, be sure to include substrate, activation energy, lock and key, and active site in your answer. Please make at least 2 paragraphs of at least 5 sentences each but use all the main points.

Choose a disease

Formulate a researched, detailed and college level answer for the following:

What are nosocomial infections?

In your research, what are some popular nosocomial infections?

What are protocols set in place to prevent nosocomial infections?

No hand written/cursive answers please!

On the CDC web site view the vaccines listed in the section "Vaccines by disease". a) Which of the different pathogen groups have the most vaccines (routine and non-routine vaccines)? b) What are the types of vaccine formulations available, e. g. heat killed, activated, recombinant, whole, polysaccharide etc.? c) What is your reaction to the list of vaccines? d) What vaccines are available for parasites in routine use or in clinical trials? (check the CDC and WHO web sites for vaccines). Specify the parasite, the type (s) of vaccine and the trial phase, if the vaccine is undergoing clinical trials.

Search for the following infections; Amebiasis, Trypanosomiasis, Leishmaniasis, Chagas disease, Malaria, Schistosomiasis, Paragonimiasis, and Filariasis, using the CDC and WHO web site for parasite infections. Millions of people are infected globally by these parasites and thousands to millions die annually, particularly children. a) What are the geographic regions considered endemic for these infections? b) Name 2 countries for each infection within a region. c) What geographic areas have witnessed emerging, re-emerging, reduced transmission or elimination of infections? d) Specifically, what information is provided regarding the WHO's efforts or response in vaccine, treatment or control strategies?

osteoclast cells

What type of organism is the cell found in? Where in the organism is the cell found? What is its function or duty? How does it contribute to the ability of the organism to maintain homeostasis? Describe the cell’s characteristics. Are there organelles? Does the cell contain components that are unique to that type of cell? Can the cell reproduce, if so, how does this occur? Is this type of cell found in other organisms?

1. Explain three reasons why a mutation in a single allele might be difficult to detect in a population.

2. Why is natural selection the most likely evolutionary mechanism to lead to adaptation? Can any other evolutionary mechanism lead to adaptation? Be sure to elaborate on your answers.

3. In a hypothetical population of 100 frogs there exists a gene with two alleles, D and d. 28 of the frogs are homozygous dominant (DD), and 22 are homozygous recessive (dd). What is the frequency of heterozygotes in the population? What are the allele frequencies? How would the allele frequencies be different in the next generation if no homozygous individuals were able to reproduce?

If you graft together a long-day rootstock plant and a short-day scion plant, what will induce flowering?

a. Long days, since the rootstock senses day length

b. Both long and short days due to the grafting

c. Short days, since the scion produces the leaves

d. Days and nights of exactly 12 hours each

e. Nothing; the plant will be unable to correctly sense day length.