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Hey there, I built this website for students studying for tough tests. I think everyone should get education for free, so that's why I made this site. But now, the way Google ranks websites changed, and not many people are visiting here. I use money from Google ads to keep this site running, but with less visitors, it's hard to do that anymore. If you like this website and want it to keep going, can you help out? Any support you give would be really appreciated. Thanks a lot for considering it.


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Match the description given in column I with their examples given in column II and choose the correct option.
Column IColumn II
(Description)(Example)
1. Aquatic respiratoryA. Skin organ
2. Organ which actsB. Ureter urogenital duct and opens into the cloaca
3. A small median chamberC. Cloaca that is used to pass faecal matter, urine and sperms to the exterior
4. A triangular structureD. Sinus venosus which joins the right atrium and receives blood through vena cava

A. 1 - A, 2 - B, 3 - C, 4 - D

B. 1 - C, 2 - A, 3 - D, 4 - B

C. 1 - B, 2 - A, 3 - C, 4 - D

D. 1 - C, 2 - B, 3 - D, 4 - A

Please do not use chat terms. Example: avoid using "grt" instead of "great".