The answer is <span>Take consistent amounts of saliva samples from a number of people who have not eaten in 8 hours and measure the quantity of amylase in each sample.
First, the researcher needs to know the quantity of amylase in the <u>same</u> amount of saliva. Thus the amount must be consistent and not varying.
Next, people must not eat in 8 hours, so they are all in the same condition at the moment of collecting saliva. If some eat immediately before the sample collecting while some eat 8 hours before, the content of their saliva will be different.
For the correct results, all conditions must be the same.</span>
The answer is probably got to be C.
Answer:
The protein that are intake through foods are broken down in the body and is converted into nitrogenous waste products which are eliminated from the body through the process of excretion.
Explanation:
Ammonotelic-Those organisms that excrete nitrogenous waste products in the form of ammonia from the body throuh the process of excretion is called as ammonotelic animals.Ammonia is more soluble in water.
Ex- Bony fish, Octopus, Sepia etc.
Ureotelic-Those organisms that excrete nitrogenous waste products in the form of Urea from the body through the process of excretion is called as Ureotelic organisms.Urea is soluble in water.
Ex- Human.
Uricotelic-Those organisms that excrete nitrogenous waste products in the form of Uric acid from the body through the process of excretion is called as uricotelic organisms.Uric acid is insoluble in water.
Ex- Reptiles, birds etc.
Answer:
Sleep apnea.
Explanation:
Sleep apnea:
Sleep apnea is considered as serious sleep disorder in which patient's breathing during sleep repeatedly stop and start along with snoring.
So, here the scenario that Sarah's grandfather is suffering from sleep apnea because he takes nap on recliner and suddenly stop snoring and stop breathing and again resume the breathing along with snoring.
Answer:
Robert Flemming
Explanation:
This is because Robert Flemming was a Scottish actor and he invented black guitar. Scientist starts to discover virus in the 1930s . The first virus discovered was tobacco virus and it is discovered by Dimitri IIvanowsky. Electrons microscope was use to discover it because it was too tiny.
