Scenario One: The effect of perfume on the behavior of bees. Description:
Joanna read that certain perfumes would cause bees to leave the hive and act
in an agitated fashion. She decided to investigate the response of bees to five
different perfumes Ralph Lauren, Armani, Marc Jacobs, Vera Wang, and the
last is an odorless liquid. She placed a saucer containing 20ml of perfume A
10 meters from a beehive. She then recorded the total number of bees that
emerged (came) from the hive during a 15 minute interval and made
observations on their behavior. Using a 30 minute interval between tests to
allow recovery time for the bees, she then repeated the procedure to test the
remaining three samples. Each test was conducted on the same day with
similar weather conditions.
Question:
Hypothesis:
Experimental Group:
Control Group:
Independent Variable:
Dependent Variable:
Control:

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally