Answer:
In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.
Explanation:
Answer: 1) Proximal Convoluted Tubule. 2) Loop of Henle. 3) Distal Convoluted Tubule. 4) Collecting Tubule. 5) Collecting Duct
Explanation:
Question 5:
A scientific theory should not be regarded as reliable (false).
Scientific theories are reliable.
Question 6:
It is best to use a line graph to show change over time.
Answer:
(a).concentrated lactic acid and that of NAD+.
(b).use of the response of NAD+ and lactic acid in absence of vitamin treatment as the CONTROL.
Explanation:
To understand this question and be able to solve this question efficiently we have to understand the concept of "respiration''. But, the short and the most simple answer to the question above can be found in the first statement of the question.
The electron transport chain include the cycle that occurs during glycolysis, fermentation and the transformation of NAD+ to form NADH and vice versa.
In the research, the dependent variable is the concentrated lactic acid and that of NAD+.
In order to increase the validity of the experiment, the Researcher can make use of the response of NAD+ and lactic acid in absence of vitamin treatment as the CONTROL.
B. Controlling the flow of Blood to the skin seems to make the most sense
