Hmm, learning about this what a while back, but i would say (1)
Answer:
A. 
B. 
C. 
D. 
Explanation:
Hello.
In this case, we must compute the final concentration in all the cases so we solve for it in the given equation:

Thus, we proceed as follows:
A. Here, the final diluted solution includes the 300 μL of the 5 mg/ml-BSA and the 700 μL of TBS.

B. Here, the final diluted solution includes the 50 μL of the 1.5 mg/ml-BSA, the 450 μL of water and the 500 μL of TBS.

C. Here, the final diluted solution includes the 10 μL of the 1 mg/ml-BSA and the 990 μL of TBS.

D. Here, the final diluted solution includes the 10 μL of the 0.1 mg/ml-BSA and the 990 μL of TBS.

Best regards.
Drives comes from the Biological environment.The Incentive comes from the external environment.
The biological environment is termed as the natural biological environment. For example, plants and wild animals which affects life of human being.
External environment is composed of the outside factors which results in operation of business.
There are two types of external environment. For example, macro environment and micro environment.
Some factors like suppliers, financiers, marketing intermediaries, customers, and public per captions can affect a micro environment.
A transitional aquatic ecosystem is one type among the aquatic systems.
There are two types in it.
Explanation:
- Estuary is formed when freshwater from the river combines with salt water from the ocean.
- The estuary is a home for a variety of species.
- Algae and marsh grasses are dominant producers.
- Wetlands are saturated with water and support aquatic plants for their survival.
- It serves as a living place for a variety of species ranging from reptiles, birds to some mammals
Here is its complicated name: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-oxane-3,4,5-triol
And here is its other name: amylum