Bird flu is a relatively new disease. Hope this helps!
The step that is missing in their methodology is DATA ANALYSIS.
Data analysis is a very important step in scientific investigation. It is the phase of the scientific investigation where the results obtained from the experiment are gathered, examined and analysed in order to obtain necessary information from the data.
Answer:
d. a bacterium with human gene for producing insulin
Explanation:
Transgenic organisms are the organisms in which the foreign DNA is introduced by using the molecular techniques for obtaining a particular result. This foreign DNA can be introduced using a vector called plasmid vector.
One of the examples of transgenic organisms is E.coli with the human gene for producing insulin. So for producing artificial insulin, the gene which produces insulin peptide is ligated in a plasmid vector and then this plasmid is introduced in the bacterium where this plasmid replicates and produces insulin. So the correct answer is d.
The question is incomplete. The complete quesetion is:
The outer layers of human skin are composed of dead cells impregnated with keratin and oil, which make the epidermis relatively impermeable to water, yet humans sweat freely in hot temperatures. This occurs because:
a) the salt in sweat allows it to diffuse through the skin.
b) sweat glands have special channels through the skin.
c) an osmotic gradient in sweat moves it through the skin.
d) sweating occurs in only those areas of the body where the skin is water permeable.
Answer:
b) sweat glands have special channels through the skin.
Explanation:
Sweat glands are present in the reticular region of the dermis. This part of the dermis contains bundles of thick collagen fibers, fibroblasts, and various cells. Sweat glands are present between these fibers. The ducts of sweat glands open on the tops of the epidermal ridges as sweat pores to release the secretions of the gland outside. This is how irrespective of the presence of the keratin layer on the outer surface of the skin, it releases sweat in hot summer days.
Every second this thing moves 75 meters in
the southeast direction. So, 2 secons will be 150 meters, 4 seconds will be 300
meters, etc.
<span>Southeast means something in the middle
between the south direction and the east direction, maybe about -45 degrees. We
can apply Pythagorean theorem:</span>
L1^2+L2^2=hip^2=(75m/s)^2
If East velocity is equal to the south
velocity, both legs will be equal:
2L^2=(75m/s)^2
L^2=(75m/s)^2/2
L = square root [(75m/s)^2/2] = (75m/s)/[square
root (2) ] = 53m/s
So the object is moving about 53m/s to the
east and 53m/s to the south.