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

Blood exhibits coagulation or clotting in response to an injury or trauma. This is a mechanism to prevent excessive loss of blood from the body. This occurs in following steps :
(i) Clot or coagulum formed mainly of a network of threads called fibrins in which dead and damaged formed elements of blood are trapped.
(ii) Fibrins are formed by the conversion of inactive fibrinogens in the plasma by the enzyme thrombin.
(iii) Thrombins, in turn are formed from another inactive substance present in the plasma called prothrombin.
(iv) An enzyme complex thrombokinase is activated.
What is the correct sequence of clotting process ?

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The nucleus of cancerous cells becomes

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Which of the following statement(s) is/are correct about nervous system of cockroach?
i. It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
ii. There are six ganglia which lie in the thorax, and three in the abdomen.
iii. The sense organs are antennae, eyes, maxillary pulps, labial pulps, and anal cerci etc.
iv. Each eye consists of about 5000 hexagonal ommatidia.

Position of testis in Periplaneta americana