Answer:
Vaccination is a form of artificial immunity. By artificially stimulating the adaptive immune defenses, a vaccine triggers memory cell production similar to that which would occur during a primary response.
___subunit vaccine: D. The gene for hepatitis B
___inactivated vaccine: A. Weakened influenza
___toxoid vaccine: C. Influenza virus particles
___live attenuated vaccine: B. Tetanus toxin m
The correct answer is medulla oblongata.
Medulla oblongata is the part of the central nervous system. It is the structure which continiues to spinal cord and represents the lowest part of the brainstem. Function of medulla oblongata is to control involuntary, autonomic functions. It contains centers for the heart and lungs, thus it regulates functions of breathing, heart rate and blood pressure.
Because roundworms move around more quicker than flatworms
Answer:
Messenger RNA is a single-stranded RNA molecule that corresponds to the genetic sequence of a gene and is read by the ribosome in the process of producing a protein.
Explanation:
