Question

The correct sequence in insect complete metamorphosis is: A) egg-…?immature form-?--> adult B) egg--> trochophore larva ? veliger larva 44. ? adult C) eggpuplaradult. D) egg? larva? pupa? adult E) adultlarvegg pupa. Which of the following is a shared derived character of mammals? A) placenta B) amnion C) three middle -ear bones D) endostyle E) notochord. 45. 46. A shark is characterized by A) placoid scales B) bony skeleton C) water vascular system D) amnion E) muscular diaphragm 7. Which of the following is NOT characteristic of birds? A) hollow bones 8) ectothermy C) amnion D) high metabolic rate E) reptilian-like scales on legs Which of the following is characteristic of insects? A) biramous appendages B) mandibles C) chelicerae D) eight legs E) two pairs of antennae 48. Protostomes are characterized by A) spiral cleavage B) indeterminate cleavage C) enterocoely D) radial symmetry E) a distinctive body plan that includes a pseudocoelom. 49.

Answer 1

Insert complete metamosphosis sequences is egg - lava - pupa - adult larva active immature stage is larval stage pupa it is a rasting stage or transition stage wings are developed with in a pupa adult pupa maths are developed to adult three middle ear bones are shared desired characters of mammals shakes are characterized by placoid scales ecothermy is not characterstics of the birds arthropods contain biramous class remipedia mandibles are in one pair in arthopads simply called jaus chelicerac these are jointed apperdages used for feeding in arachrids insets contain 3 pairs of legs but sub phylum chelicesta contain with eight legs insets contain one pair of antenna but in sub phylum has two pairs ptotostomes are characterized by - spiral cleavage