Doctors are seeing an alarming increase in the number of cases of tuberculosis (tb) that is resistant to drugs commonly used to treat the disease. tb is difficult to pass to other people without prolonged contact, but it is often fatal if it is not treated. how will doctors most likely respond to someone who has an active case of drug-resistant tuberculosis? a.) doctors will not be able to do anything to someone with drug-resistant tb. b.) doctors will expose other people to the patient to those people develop a resistance to tb. c.) doctors will use other drugs that are known to be able to treat tb, even if they are less effective than the common drugs. d.) doctors will use the patient to test the effectiveness of new antibiotics that have not been tried on people yet.

The answer is C. Doctors will use other drugs that are known to be able to treat TB, even if they are less effective than the common drugs.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.