34. Fishes a are infrequently threatened with extinction or depletion that have

Question

34. Fishes a are infrequently threatened with extinction or depletion that have become extinct in the USA number 61 c. constituting almost 30% of all species are threatened with extinction d. include eight genera of extant Sarcopterygii that are destitute of extremities (limbs) include Dipnoi, which possess an ample maxilla include Dipnoi, whose dorsal, caudal and anal fins are coalesced into essentially a single fin 35. Dipnoi possess a homocercal caudal fin possess a heterocercal caudal fin possess lung (pulmon) or lungs (pulmones) possess branchiae e. include Neoceratodus, which possesses delicate scales (squamae) f. include Lepidosiren ("scaly monster), which ambulates on its paired appendages 36. Dipnoi include a. Lepidosiren, which possesses ponderous appendages b. the Australian lungfish, which aestivates (experiences torpor) in cuniculi (burrows) e) Neoceratodus ("new horned one"), which possesses a pair of lungs (pulmones) Protopterus spp. (Protopteri), which inhabit inundated regions until water recedes, and then excavates a cuniculus where they persist until the cuniculus desiccates e. Protopterus, which experiences the final stages of aestivation circinate (coiled) f. Lepidosiren, whose pelvic pterygia (fins) possess vascularized fimbriae 37. Coelacanthimorpha a. originated in the Carboniferous period b. possess a bilobate caudal fin O include Latimeria chalumnae ['the one of the Chalumna (River) of (discovered by) Marjorie-Courtenay Latimer], which possesses cavitate rays ["hollow spine (sy in its caudal fin include predaceous, nocturnal, parabenthic (near-bottom) Sarcopterygi e. possess a cephalic (capital) gland that excretes salt f. possess haematic osmolality that differs grandly from that of seawater 38. Coelacanthimorpha a. possess a caudal fin whose central lobe is indurate (hard) da possess a hydrostatic organ containing adipose tissue and ossified periphery, which provides buoyancy ossess a presumably electroreceptive rostral organ consisting of three gel-filled tubes that are connected to the corporal surface via a series of four pores d. possess a rectal gland that absorbs salt have been strictly marine are mesopelagic 39. Among Otomorpha, a. Otophysi comprehend characins, pike characins, pike-characids and do b. Anotophysi include herrings and anchovies b. Clupei include South American darters and freshwater hatchetfishes c. Cypriniformes include si gteeth tetras lversides, most knifefishes, tigerfishes, and robbers

Explanation / Answer

34. Fishes:

Ans: b, f

B: that have become extinct in the USA number 61.

F: include dipnoi, whosw dorsal, caudal and anal fins are coalesced into essentially a single fin.

35. dipnoi:

Ans: a, c, d

A: posses a homocercal caudal fin

C: posses a lung (pulmon) or lungs ( pulmones)

D: posses bronchiae

36. dipnoi includes:

Ans: c

C: neoceratodus( “ new horned one” ) which posseses a pair of lung (pulmones)

37.coelacanthimorpha:

Ans: c,d

C: include Latimeria chalumnae [ the one of the chalumna (river) of (discovered by) majorie-courtnery latimer], which posseses cavitate rays (“ hollow spine(s)”] in its caudal fins.

D: include predaceous, nocturnal, parabenthic (near-bottom) sacropterygii.

38. coelacanthimorpha:

Ans: b, c, f

B: posses a hydrostatic organ containing adipose tissue and ossified periphery, which provides buoyancy.

C: posseses a presumably electroreceiptive rostral organ consisting of three gel- filed tubes that are connected to the corporal surface via a series of four pores.

F: are mesopelagic.

39. among otomorpha:

Ans b, d

B: anotophysi include herrings and anchovies.

D: cypriniformes includes silversides, most knife fishes, tigerfishes and robbers.

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