Answer:
The plants in an ecosystem produce food for most of the other organisras that live in that ecosystem. The role of a plant in its ecosystem is its <em>trophic level</em>
Explanation:
Plants are the least to be found in the trophic level, they are otherwisely called <em>autotrophs. </em>They make food for themselves while others among the trophic level depend on them
38) I believe the correct answer would be letter D: ions are moved against the concentration gradient.
39) I believe the correct answer is letter A: the DNA information for development was silenced in differentiated cells. This is because the frog did not go through <span>embryonic development.</span>
Answer: The answer is D
Explanation: Bed bugs do in fact release an anesthetic as they feed to increase blood flow the the bite that makes it quick and painless to the victim until later.
Answer:
Please look at the explanation section.
Explanation:
1) To calculate the yield of a protein in the purification step, the amount of protein produced must be divided by the amount of protein produced in the first step. The expression is as follows:
%protein yield = (Amount of protein/Amount of protein produced in the first step) * 100
If you have the purity percentage and the amount of protein produced, this formula could be used:
%protein yield = (Protein amount * Purity Percentage)/100
2) If this process begins with a cell culture and ends with the purification of Ni+2NTA. One method of increasing performance is to decrease the number of steps in the purification process. Because unfortunately, at each step of the purification of a protein leads to the loss of them.
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
