Question

Myxomycetes are

• A. saprotrophic or parasitic organisms with mycelia; reproduces asexually by fragmentation.
• B. slimy mass of multinucleate protoplasm with pseudopodia-like structures for engulfing food; reproduces by fragmentation or zoospores.
• C. cellular or acellular prokaryotes; saprotrophic or autotrophic;
  reproduces by binary fission.
• D. eukaryotic, single celled or filamentous organisms; autotrophic or saprotrophic; can reproduce sexually or asexually.

Answer 1

The correct option is B slimy mass of multinucleate protoplasm with pseudopodia-like structures for engulfing food; reproduces by fragmentation or zoospores.

Myxomecetes are the true slime molds. They are protists with fungi-like characteristics.

"Saprotrophic or parasitic organisms with mycelia; reproduces asexually by fragmentation." refers to fungi. Slime molds are not fungi. So this is wrong.

"Cellular or acellular prokaryotes; saprotrophic or autotrophic;
reproduces by binary fission." is wrong since Protists are eukaryotes not prokaryotes.

"Eukaryotic, single celled or filamentous organisms; autotrophic or saprotrophic; can reproduce sexually or asexually" can refer to algae. So this is wrong.

"Slimy mass of multinucleate protoplasm with pseudopodia-like structures for engulfing food; reproduces by fragmentation or zoospores." are all characteristics that describe slime molds or Myxomycetes. So this is correct.