Answer:
a light year is 2 seconds
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Explanation:
The study of the cell cycle focuses on mechanisms that regulate the timing and frequency of DNA duplication and cell division. As a biological concept, the cell cycle is defined as the period between successive divisions of a cell. During this period, the contents of the cell must be accurately replicated.
Given: Drug medications are often prescribed on the basis of body mass. the adult dosages of elixophylin, a drug used to treat asthma, is 6mg/kg of body mass.
To find: The dosage amount for a person weighing 160 lb.
Method: Unitary method of proportions
Solution:
First we'll convert the weight of person from imperial unit to metric unit.
1 pound = 0.45 kilograms
160 pounds = 0.45 x 160 = 72 kg
∴ The weight of person in kilograms is 72 kg.
Now, a elixophylin dosage of 6 mg is administered to 1 kg body mass.
For 72 kg body mass, dosage will be,
= 432 mg
∴ The person of 160 lb body weight will receive 432 mg of elixophylin dosage.
Diatoms
http://ugf3g1.rg.ro/Y4-3
This may help you props to the owner of this pdf
BRAIN MAY GROW NEW CELLS DAILY. This zone was recently identified by other scientists as the home of the brain's stem cells, the source cells from which an organ is replenished. The new neurons migrated toward the cortex, matured and sent out axons to make connections with other brain cells, the Princeton biologists found.