Statement I: All sponges are marine and have choanocytes. Statement II: All mammals are viviparous and possess diaphragm for breathing

Question

Statement I: All sponges are marine and have choanocytes. Statement II: All mammals are viviparous and possess diaphragm for breathing (A) Only statement I is correct (B) Only statement II is correct (C) Both statements I and II are correct (D) Both statements I and II are incorrect

Tardigrade Admin · Accepted Answer

Most sponges are marine but few are present in fresh water (e.g., Spongilla) have water transport or canal system. Choanocytes are cells lining the spongocoel and canals.
Usually mammals are viviparous with few exceptions e.g., Omithorhynchus

Q. Statement I: All sponges are marine and have choanocytes. Statement II: All mammals are viviparous and possess diaphragm for breathing

Only statement I is correct

Only statement II is correct

Both statements I and II are correct

Both statements I and II are incorrect

Most sponges are marine but few are present in fresh water (e.g., Spongilla) have water transport or canal system. Choanocytes are cells lining the spongocoel and canals. Usually mammals are viviparous with few exceptions e.g., Omithorhynchus

Q. Statement I: All sponges are marine and have choanocytes.
Statement II: All mammals are viviparous and possess diaphragm for breathing

Most sponges are marine but few are present in fresh water (e.g., Spongilla) have water transport or canal system. Choanocytes are cells lining the spongocoel and canals.
Usually mammals are viviparous with few exceptions e.g., Omithorhynchus