Lymph nodes. They comprise the lymphatic system that
connects to the blood circulatory
system. They are significant in the
immune system. At the lymph nodes, foreign bodies
in the lymph, such as pathogens, are filtered
and trapped in lymph nodes where they are later destroyed by lymphocytes.
Which of the following accurately describes the orbits of the planets in the solar system? ... The orbits are almost on a single plane and the planets revolve around the Sun in the same direction.
