Hi
I think a very important thing while working in a scientific laboratory is to have cooperation along with a sense of individual responsibility. There are many times when you are not expert in one scientific technique but your senior or fellow worker is because of his/her prior experience. At that point, the people of laboratory should cooperate with each other in giving some tips regarding performing a specific technique and getting the results with minimum time wastage. This does not mean that you take help from some one without giving them credit.
There should be a lab attendant in every lab who should be consulted for every problem so that he can assign some relevant worker to help you in the work. After you get the help, the attendant should confirm from both persons and keep a log about it which they should appreciate and give a fair credit about inquiries of higher authorities like supervisors.
Another important factor that is important for people is to have a sense of respect for each other. This is important to listen to others without just thinking about our own perspective and our own understanding. This also enables to understand a point from larger view and can help to bring a point in mind which we otherwise might skip.
Answer:
The figure 54.3 shows an example of a model which compares relative species richness and species diversity of these two coffee plantations.
According to this model, we can see that the species diversity in the clear-cut plantation is a lot lesser as compared to the coffee plant which was planted int the natural forest. The species diversity is higher in the natural forest because of higher number of species and also due to the more even distribution of abundance among species.
Answer:
a) 0.1 mL
b) contamination
c) clumping of colonies
d) Uneven colonies
Explanation:
In general, when performing spread plates, 0.1 mL
mL of cell suspension is added to the plate to prevent the formation of a microbial contamination
Adding more than 1 mL of cell suspension to an agar plate will result in a clumping of colonies.
Adding less than 1 mL of cell suspension to an agar plate will result in a Uneven colonies
Answer: increase heartbeat
Explanation:
Just as during exercise, holding your breath for 5 Minutes will increase levels of CO2 in your BLOOD.
Then, the body tries to wash out the excess CARBON DIOXIDE while providing FRESH OXYGEN. Your heartbeat rate will also INCREASE in order to pump your blood and properly "ventilate" your muscles.
So, holding your breath for 5 minutes will INCREASE heartbeat.
Answer:
Sedimentary rocks are found mostly near sources of water, and they can be found in water.
Explanation:
This is because near water, in rivers or streams, is where a lot of erosion happens, and is therefore where sediment forms.
