Answer:
''Watching television adversely impacted the quality of sleep''.
Explanation:
''Watching television adversely impacted the quality of sleep'' is the best hypothesis for her study. Watching television right before bed, can negatively impact your sleep quality. Late-night watching television disrupts your internal clock that adversely affected sleep quality of an individual. The above hypothesis is used by the Rachel to investigate the impact of watching television before sleeping on the sleep quality.
Answer:
Natural selection. It is simply the process by which random variations that give an individual a favorable adaptation to its environment survive to be passed on to offspring.
Positive control is Ginger root (should indicate the presence of amylase)
Negative control is Cellulose (should not contain amylase)
Here the presence of amylase is tested by testing the presence of starch using an IKI solution. Saliva is included in this experiment because it contains the enzyme amylase.
Answer:
Starvation causes a reduction in the <u>oncotic</u> pressure in the <u>cappilaries</u>, thus causing edema in the tissues.
Explanation:
Starvation is the extreme form of malnutrition, in which the caloric energy intake of an individual is much lower than required. The cells of the body start the breakdown of proteins, after the fat stores get exhausted. This reduces the oncotic pressure or the colloidal pressure in the blood vessels or capillaries of the body, thereby causing edema.
Edema is a medical condition, which involves the abnormal accumulation of fluid in the interstitium and cavities of the body.
