1. If one bacillus is 2um, then 1000 bacillus could fit end across the field.
Also
200 yeast cell fit across the field.
2. Ways in which you can enhance the resolving power are
a. Adjustment of numerical aperture
b. Immersion oil
3. It helps you to get a better view of fungi or algae because they are larger organism
4. If water accidentally used in place of immersion oil the image would not be clear.
5. The diaphragm and the light intensity adjustment.
6. The immersion oil objective (100x)
7. Because you do not have to refocus the microscope every time you switch the lenses.
8. Protozoa is the largest organism while virus is the smallest.
9. Because you are essentially looking closer and closer at the object.
The main processes of the nitrogen cycle are nitrogen fixation, nitrification, denitrification, anammox, and ammonification.
Explanation:
The sequence in which nitrogen passes from the atmosphere to the soil and organisms, and then is eventually released back into the atmosphere, is called nitrogen cycle.
Nitrogen cycle involves the following processes:
•Nitrogen Fixation
It is a process by which atmospheric nitrogen is converted into the form which can be easily absorbed the organisms on earth.
Nitrogen Fixation is carried out by the following ways:
1.By lightning: When lightning occurs, the high temperature and pressure convert nitrogen and water into nitrates and nitrites which get dissolved in water and are readily used by aquatic plants and animals.
2.By bacteria- Molecular nitrogen is converted into nitrates and nitrites by free living bacteria or the bacteria like Rhizobium present in the root nodules of legumes. Some bacteria convert the nitrogen gas (N2) to ammonia (NH3) which plants can use.
• Nitrification: It is the process by which ammonia is converted into nitrites and nitrates.
•Ammonification: It is the process by which soil bacteria decompose dead organic matter and release ammonia into soil.
•Denitrification: It is the process by which nitrates are converted into atmospheric nitrogen back to complete the cycle.
The offspring must have one gene from each parent. To find the possible genes for all offspring, list all possible combinations that have a gene from each parent:
(Rr) | (rr)
R | r
R | r
r | r
r | r
The question asks for the probability of the offspring having rr genes. There are 2 offspring that have these genes out of the 4 created. Divide 2 by 4, then multiply by 100:
There is a
50% chance of the offspring having wrinkled seeds.