Prepare for NEET Biology Biological Classification with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to classify and identify organisms.
Which parasitic protist causes sleeping sickness, a disease transmitted by the tsetse fly?
Plasmodium
Entamoeba
Trypanosoma
Paramecium
Which group of protists contributes significantly to the formation of red tides, often leading to marine animal mortality?
Diatoms
Dinoflagellates
Euglenoids
Ciliates
Which unique characteristic differentiates the phloem sieve tubes of angiosperms from those of gymnosperms?
Presence of companion cells
Presence of sieve plates
Transport of sugars
Bidirectional translocation
A researcher discovers a new animal species exhibiting radial symmetry, a diploblastic body plan, and cnidocytes. This organism most likely belongs to which phylum?
Cnidaria
Platyhelminthes
Echinodermata
Porifera
The heterosporous nature of Selaginella is considered an evolutionary advancement because it:
Leads to the development of seeds
Increases the number of spores produced
Allows for asexual reproduction
Simplifies the gametophyte generation
Which feature distinguishes Aschelminthes from Platyhelminthes?
Presence of a pseudocoelom
Bilateral symmetry
Triploblastic body plan
Presence of a digestive system
The double fertilization event unique to angiosperms results in the formation of:
A diploid zygote and a triploid endosperm
Two diploid zygotes
A haploid zygote and a diploid endosperm
Two haploid zygotes
Which of the following is NOT a characteristic of the members of the phylum Chordata?
Open circulatory system
Notochord
Dorsal hollow nerve cord
Pharyngeal gill slits
Certain infectious particles lack nucleic acids yet cause diseases. Which of the following correctly describes the infectious agent and a disease it causes?
Viroids; Potato spindle tuber disease
Prions; Creutzfeldt-Jakob disease
Viruses; Tobacco mosaic disease
Lichens; Athlete's foot