Matching. Mark the letter of the best matching answer. Note that numbered questi

Question

Matching. Mark the letter of the best matching answer. Note that numbered questions may only be matched to lettered answers directly above. Dashed lines are meant isolate questions with suitable answers. A) Archaeplastida B) Excavata. C) Unikonta Land plants and Chlorophytes Fungi A) coelomate B) acoelomate C) pseudocoelomate crayfish A) Porifera B) Arthropoda C) Mollusca D) Cnidaria E) Platyhelminthes mobile medusae and sessile polyps shells spiracles and trachea A) Monotremes B) Eutherians C) Marsupials lay eggs have developed placenta A) ground tissue B) dermal tissue C) cambium D) xylem outer protective covering A) Morphological species concept B) Biological Species concept irrelevant to paleontologists studying fossils A) Monocots B) Eudicots parallel venation in leaves A) lampreys B) chondrichthyans C) ray-finned fishes D) lungfishes A modern line/subgroup of jawless fishes related to an early chordate Most modern fishes A) Mesozoi

Explanation / Answer

71. Land plants and chloroplasts- A. Archaeplastida

72. Fungi- C. Unikota

Explanation: The above comes under KIngdom Protista, which includes mainly unicellular eukaryotes.Based on the cellular structure, taxonomical classification is done into four supergroups, further divided into levels called clades; which includes group of species all descendants of ancestory.

SUPERGROUPS- EXCAVATA, SAR, ARCHAEPLASTIDA, UNIKOTA further they are divided into many clades. UNIKOTA subdivided into OPISTHOKONTS and AMOEBOZOANS. FUNGI BELONGS TO OPISTHOKONTS of UNIKOTA

73.Crayfish- A.Coelomate

Explanation: Classification of animal kingdom is based on body cavity or coelome as well apart from other funamental features like symmetry, notochord. Here it is based on coelome. Coelome is the presence of body cavity between gut wall and body wall which is lined by mesoderm. Examples: Arthropoda, annelida, mollusca, echinoderms, chordate and hemi-chordates.Here crayfish belongs to phylum Arthropoda and hence it is a coelomate. Sub-phylum:Crustacea

74. Mobile medusae and sessile polyp- D. Cnidaria

Explanation: Phylum Cnidaria is derived from Cnidoblasts presence of tentacles. They exhibit mainly two basic forms of the body; Medusae and polyp which are umbrella shaped, free swimming and sessile and cylindrical form respectievely.Medusa represents sexual phase while polyp is asexual phase.

75. Shells- C Mollusca

Phylum Mollusca, body is covered with calcareous shell and is second largest phylum. Examples: Snails, mussels.

76. Spiracles and trachae-B. Arthropoda

Explanation: Phylum Arthropoda have well developed organ system and most of the creatures belongs to this phylum. Arthropods have exoskeleton and segmented body. Examples: Scorpion, centipede, insects

77. Lay eggs- A. Monotremes

78. Have developed placenta- B. Eutherians

Explanantion; Monotremes are the egg-laying mammals and primitive. ex: duck billed platypus, spiny anteaters (echidna).Phylum: Chordata

Eutherians- They have a well developed placenta. Marsupials also have placenta but it is short lived. .Phylum: Chordata

Ex: Bats, dog, cat, sheep, horse

79. Outer protecting cover- B. dermal tissue

Explanation: It is outermost distinctive layer which protects the inner most tissues of the plant which further leads to epidermis.

80.Irrelevant to paleontologists studying fossils- A. Biological species concept.

81. Parallel venation in leaves : A. Monocots

Explanation: Monocots have parallel venation while eudicots are net veined.

82. A

83. D

84. A

85. C.

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