<span>The answer is : Both have true necks, while eusthenopteron has no neck. </span>We know that tiktaalik is more closely related to acanthostega than it is Ichthyostega eusthenopteron because Tiktaalik and Acanthostega both have true necks while eusthenopteron has none.
Answer:
B an animal that can live in fresh water
A vaccine works by stimulating the immune system to produce antibodies without actually infecting someone with that disease. They trigger the immune system to produce its own antibodies as though the body has been infected with the disease. But a vaccine will not make someone immune to a disease, it will simply help the body be able fight the infection better.
A likely diagnosis would be a pelvic inflammatory disease. It is an infection of the reproductive system of a female. It would include the ovaries, uterus, cervix and the fallopian tube. It is commonly caused by STI or sexually transmitted infection like gonorrhea and <span>chlamydia</span>. Symptoms include pain in the pelvis and the lower belly, heavy discharge with unpleasant smell, pain during intercourse, bleeding, fever and pain when urinating. If this disease is not treated well it could lead to more serious problems or complications like trouble in getting pregnant and pain in the pelvic area that does not go away.