Interstitial fluid,after collecting as lymph,is eventually drained into the ........ .

Read the following:
$a.$ Lymph absorbs and transports fat from the intestine.
$b.$ Lymph nodes produce fibrinogen.
$c.$ Lymphatic capillaries present in the intestinal villi are known as lacteals.
$d.$ Lymph transports oxygen only.
Which of these statements are true?

Lymph is colourless because

Which of the following acts as a middleman?

Antigens trapped in the lymph nodes activate:

Lymph differs from blood in having