Question 1
__________ are autotrophic bacteria that obtain their energy from

oxidation and C from

1.
◦ Thiobacillus
◦ N/A
Question 2
Low Mg content in forage crops, particularly grasses, used for animal feed may cause __________ , which is an abnormally low level of blood Mg.
◦ grass tetany (hypomagnesemia)
◦ N/A