STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

$I. Serotonin$     $II. ACTH$   $III. MSH$    $IV. PRL$    $V. Melatonin$   $VI. FSH$   

The correct option is

$A$. Annelids are true coelomates  $B$. Poriferans are pseudocoelomates

$C$. Aschelminthes are acoelomates  $D$. Platyhelminthes are pseudocoelomates

Choose the correct answer from the options given below :

$(i)$ Leucocytes disintegrate in the spleen and liver.

$(ii)$ $RBC, WBC$ and blood platelets are produced by bone marrow.

$(iii)$ Neutrophils bring about destruction and detoxification of toxins of protein origin.

$(iv)$ The important function of lymphocytes is to produce antibodies