Biology Answers

Give proper scientific names to six hypothetical animal species. Assume that you have three different genera represented in your group of six. Be sure your format of writing scientific names is correct.

1. Increase of carbon dioxide concentration in inspired air，how does respiratory movement change? Why?

2. Cut the vagus nerve two sides， how does respiratory movement change? Why?

Internationally Hiv transmission , is it a crime?

2. What is the relationship between amino acids and the nitrogenous bases of purines and pyrimidines?

3. What is cloning? Cite its advantages and disadvantages.

1. Why a degenerate genetic code helps protect an organism from the effects of mutations?

The third experiment

1. Increase of carbon dioxide concentration in inspired air，how does respiratory movement change? Why?

2. Cut the vagus nerve two sides， how does respiratory movement change? Why?

The fourth experiment

1. How does the amount of urine change after injection of 20% glucose 5ml? How is the mechanism?

2. How does the amount of urine change after injection of Furosemide? How is the mechanism?

The fifth experiment

1. To stimulate the complete depressor nerve(aortic nerve) and the end of the central and peripheral ends, blood pressure, what changes? And why?

2. Injection of 0.01% Noradrenaline 0.3ml, blood pressure, what changes? And why?

What happens to plant and animal cells placed in solutions of different concentrations

Human cheek cells were placed in a solution more concentrated than their cytoplasm. State the effect this would have on the appearance of the cells

Why air is better than water for respiratory in man?