Diatoms belong to which kingdom and are characterized by their unique cell walls made of what?
Plantae, cellulose
Protista, silica
Fungi, chitin
Monera, peptidoglycan
Related Questions
Which of the following combinations of characters is unique to the phylum Chordata?
Bilateral symmetry, triploblastic, coelomate
Notochord, dorsal hollow nerve cord, pharyngeal gill slits, post-anal tail
Closed circulatory system, segmented body, jointed appendages
Radial symmetry, diploblastic, acoelomate
A newly discovered organism exhibits radial symmetry in its larval stage but bilateral symmetry as an adult. Its body cavity is formed by splitting of the mesoderm. It possesses a water vascular system. To which phylum does this organism MOST likely belong?
Echinodermata
Chordata
Cnidaria
Annelida
Biosystematics aims at
The classification of organism based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies
Identification and arrangements of organism on the basis of their cytological characteristics
The classification of organisms based on broad morphological characters
Delimiting various taxa of organisms and establishing their relationships
The 'Five Kingdom Classification' system proposed by R.H. Whittaker does NOT primarily consider which of the following criteria?
Cell structure (prokaryotic vs. eukaryotic)
Mode of nutrition (autotrophic vs. heterotrophic)
Thallus organization (unicellular vs. multicellular)
Detailed evolutionary relationships based on genetic analysis
Which of the following features is NOT characteristic of the members of the kingdom Fungi?
Heterotrophic mode of nutrition
Presence of chlorophyll a and b
Cell wall made of chitin
Reproduction by spores
Certain members of the kingdom Protista exhibit characteristics of both plants and animals. Which of the following combinations correctly identifies a protist with plant-like and animal-like features, respectively?
Diatoms (plant-like: cell wall of silica); Paramecium (animal-like: cilia for movement)
Euglena (plant-like: photosynthetic); Amoeba (animal-like: heterotrophic by phagocytosis)
Slime molds (plant-like: saprophytic); Dinoflagellates (animal-like: bioluminescence)
Amoeba (plant-like: pseudopodia); Paramecium (animal-like: heterotrophic)
A scientist discovers a new species with the following characteristics: eukaryotic, multicellular, photosynthetic, lacks vascular tissue, exhibits alternation of generations with a dominant gametophyte. This organism MOST likely belongs to which plant group?
Pteridophyta
Bryophyta
Gymnosperms
Angiosperms
Term ‘New Systematic’ was given by
Julian Huxley
Bateson
Linnaeus
Darwin
