Diversity in Living Organisms

Alexandrium is a genus of dinoflagellates, with many species related to toxin production leading to Paralytic shellfish poisoning. The dinoflagellate cysts produced by this species are considered much more toxic than swimming cells.

H. capsulatum is a dimorphic fungus that exists as a mold in soil and as a yeast in tissue. Candida and Cryptococcus are not dimorphic fungi they are true yeast.

Leech is an ectoparasite. It lives on the host and sucks blood.

Yes, it is correct answer. A circulatory system is not found in member of phylum Aschelminthes.

Correct answer. Both Aves and Mammals are homeothermal animals.

In chordates, notochord is present and pharynx is perforated by gill slits.

Organisms of phylum Aschelminthes have bilaterally symmetrical body with false coelom.

Yes, it is the correct answer. Organ system level of body organisation is found in organisms belonging to phylum Annelida and Echinodermata.

Planaria and Taenia belong to phylum Platyhelminthes.

Jointed legs are characteristic feature of organisms belonging to phylum Arthropda.

This is the correct option.

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This is the correct option. Bacteria and minute algae are the foods of an amoeba.

This is the correct option. In amoeba, the food is ingested through pseudopodium. In hydra, food is ingested through tentacles. In butterfly, food is ingested through the feeding tube.