Platyhelminthes, or flatworms, lack a true body cavity, making them aceolomates. Their bodies are filled with mesodermal cells, leaving no space for organs to be suspended in a coelom. This characteristic is a key feature distinguishing them from coelomates and pseudocoelomates.
LIST I (Condition) | LIST II (Characteristics) |
---|---|
A. Color blindness | I. Insensitivity to green and red light |
B. Hemophilia B | II. Deficiency of clotting factor IX |
C. Hemophilia A | III. Deficiency of clotting factor VIII |
D. G-6-PD deficiency | IV. Severe anemic condition |
Europium (Eu) resembles Calcium (Ca) in the following ways:
(A). Both are diamagnetic
(B). Insolubility of their sulphates and carbonates in water
(C). Solubility of these metals in liquid NH3
(D). Insolubility of their dichlorides in strong HCI
Choose the correct answer from the options given below: