The structures that might be
found on the underside of fern leaves are spores. The correct answer between
all the choices given is the last choice or letter C. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.
They can be used to produce vaccines.
They can be used to determine the response of tissue to drugs.
They can be used to produce hormones.
Answer:
B
Explanation:
The Ames test is a bacteriological technique commonly used to determine if a particular chemical or substance can cause mutations. To achieve this, researchers use bacteria (commonly <em>Salmonella typhimurium</em>) as this bacteria strain is unable to grow in a medium that does not contain histidine (a very important amino acid in the biosynthesis of proteins). If the studied substance is able to cause mutations, bacteria will mutate, and they will be able to grow on that particular media even if they don’t have histidine for their metabolism. Therefore, if there are colonies growing, the chemical being tested is mutagenic.
I hope this clarify your inquiry.
Why is distilled water beneficial to plants.
A
Hello!
I believe the answer is :
Oxygen, Nitrogen, and Fluorine because they are highly electronegative and very small.
Good luck!
