Gradual changes in the frequency of diseases over long periods are known as SECULAR TIME TRENDS. For example, the rate of mortality in USA due to coronary heart diseases over a period of time. Onset of puberty in girls is also a secular time trend.
Secular time trend is also referred as Secular Variation and Secular Drift.
A. Water being pumped in and out of guard cells.
False
The diseases, announced by Dr. Stig Froland, Dr. Paul Jenum and associates, shows that AIDS happened in disengaged occasions far and wide some time before general wellbeing authorities saw it years back.
In the Norwegian case, a mariner conceived in 1946, was first observed by Dr. Froland in 1966. He experienced general swelling of the lymph organs, respiratory diseases and different other health issues. Both his wife and child has complications as well from the ailment and all members of the family passed on in 1976.
Arteries like veins, are tube-shaped vessels that carry blood in the body.
But the difference is that the artery carries oxygenated blood away from the heart to the body. But the veins carry poor-oxygen blood back from the body to the heart!
I hope this helps! :)
Answer:
Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.
Explanation:
Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.
