Homework Help for Biology

As the new CHN for a local community you have been asked to address the incidence of substance abuse for women ages 15-30. You have been given statistical information that includes evidence of poly-substance abuse for this group. 1. State the concerns specific to this age group regarding polysubstance abuse. 2. State your specific plans for developing outreach programs and education for this age group. 3. State how you would implement your plan and give timelines. Be specific about plan for this age group (who, what. when, where, type of education, how education would be implemented with timelines). Provide evidence-based rationale for your plan.

What is entatcin, how does it bind to integrins, how is it inhibited, and what are the effects of inhibitng it?

Hard water is water with high mineral/salt content. I'm toldthat a potted plant watered with a salt solution dries out sooneror later. Is this true?

If so, would a plant survive if watered using hard-water?

Which way does a neutral charged dye run? Positive charged dye? Negatively charged dye?

Which of the following is a protein uniquely characteristic of retroviruses?

A. capsid envelope

B. glycoprotein

C. AIDS

D. reverse transcriptase

Slash-and-burn agriculture has been practiced for millennia in tropical countries throughout the world. In this form of agriculture, some timber may be harvested from tropical forests prior to their conversion to agricultural use, but most of the aboveground biomass is cut and burned on site. Agricultural crops are planted immediately following burning. Recently, there has been increased pressure to harvest all timber (for transport off site) from tropical forests prior to their conversion to agriculture. What are the implications of such complete harvest for the success of subsequent agricultural activities on oligotrophic soils in the tropics?

4. The table is from work done by Oswald Avery’s research group regarding transformation. The “transforming principle preparation” column on the left refers to the heat-treated smooth (virulent) bacteria. SIII refers to smooth bacteria. R refers to rough (nonvirulent). (this table can be search on google by typing the question. Please search to view it because I can't be able to post it. Thanks)

a. Which of the following best describes transformation?

A. The uptake of foreign material into a cell.

B. The conversion of a non-disease-causing bacteria into a disease causing one.

C. The transfer of novel DNA into a cell.

b. Which of the following best describes how Avery contributed to our understanding that DNA is the genetic material based on his transformation experiments?

A. He showed that non-disease causing bacteria could become disease causing bacteria.

B. He showed that addition of a nuclease to a cell sample could block transformation.

C. He showed that addition of a ribonuclease to a cell sample could block transformation.

D. He showed that addition of a protease to a cell sample could block transformation.

c. Which of the following conclusions would you make based on the table above? Select all that apply. A. DNA, and not RNA or protein, is our genetic information.

B. More “transforming principle preparation” results in more transformation.

C. All replicates of the experiment produced identical results.

D. Without “transforming principle preparation” added to the reaction, transformation cannot happen.

what role does the environment play in the prevention of breast cancer disease

For each case, decide what technology would best diagnose the problem for each patient. Identify the symptoms that inform your decision about which technology to use. (5 sentences for each case)

Patient A: A man appears normal - however, his wife brought him to the emergency department because a few moments earlier, he appeared to lose consciousness. She reports that his eyes rolled into the back of his head, and his arms were moving and jerking erratically

Patient B: An athlete sustained a blow to the helmet and is complaining of dizziness and headache. His speech is slurred and he appears to struggle to put together a coherent sentence

Patient C: A pregnant woman is complaining of thought disturbances and appears manic

Most commonly, heating a solution of proteins causes the formation of large aggregates, while heating a solution of glycogen to the same temperature doesn't cause the formation of aggregates. What is the best explanation for this difference?

THE GENETIC BASIS OF LIFE ; Learning is defined as a change in behavior based on experience. In a short essay (100-150), describe the role of heritable information in the acquisition of learning, using some examples from imprinting and associative learning.

1) Ejection fraction represents which of the following?

Select one:

a. The percentage of blood ejected by the heart upon contraction.

b. The millimeters of blood ejected from the heart upon contraction.

c. volume of blood ejected divided by the total volume of blood filling the heart

d. both a and c choices are correct

2) Which of the following is most related to the concept of perfusion?

Select one:

a. Stroke volume

b. Diastole

c. Mean arterial pressure

d. Systole

3) Which of the following best describes stroke volume?

Select one:

a. Stroke volume is the systolic volume minus the diastolic volume

b. The volume of blood ejected from the heart

c. The volume of blood left in the heart after the heart contracts

d. The volume of blood in the heart

4) If you had a cardiac output of 8.5L, what might the body do to compensate?

Select one:

a. increase the heart rate

b. decrease the heart rate

c. increase the stroke volume

d. decrease the pulse pressure

5) Which of the following represents the amount of pressure in the arteries when the heart contracts?

Select one:

a. diastolic pressure

b. pulse pressure

c. mean arterial pressure

d. systolic pressure

What role does fiber play in digestion and absorption? Discuss how these can be attributed to health benefits and give examples. Be specific, support your answer and be sure to cite your sources using APA style.

Which of the statements below about glycocalyces isINCORRECT?

Glycocalyces are not present inorganisms that have cell walls.
Glycocalyces play a role inthe ability of bacteria to cause disease.
Glycocalyces help microbesattach to surfaces.
Glycocalyces are composed ofpolysaccharides and/or polypeptides.
Glycocalyces are involved inthe formation of biofilms.

What is true about asbestos: Select one or more: a. it causes the lysosomes to burst and release enzymes into the entire cell b. teh lysosome cannot break down asbestos with its digestive enzymes c. asbestos can increase your risk for lung cancer d. it causes impaired respiratory function e. all of the above