Hey You!
I believe the answer would be:
Excess Vitamin A is most harmful to an embryo during the first and second months of pregnancy.
Please do let me know whether or not this helped you out.
Answer:
Explanation:
Dilute solutions are prepared so as to allow a significant amount of light to pass through the solution and be measured by the recorder. Opaque solution are also diluted so light can pass through and be recorded. Similarly other substances which have very large absorption have to be diluted so that significant amount of light could reach detector.
C. Motility --> Listeria is motile (tumbles over each other in microscope), whereas Corynebact. is non-motile
**Both: Gram (+) rods, catalase (+)
Other tests: Nitrate reduction and sugar fermentation
The answer would be around 12 feet.
