You have a stock solution of PFA at 16% (V/V) but will need to use it at 3.7% (V/V) for your experiment, knowing that you need to make 10mls of the solution, what is the volume to be used 231microlitres
2310mililiters
43.24microliters
43.24milliliters
2312microliters
432.4milliliters
231 millilitres
432.4 microliters

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek