BIOL:1412 MIDTERM 3 EXAM QUESTIONS WITH 100% CORRECT ANSWERS LATEST VERSION 2025/2026.

BIOL:1412 MIDTERM 3 EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS LATEST VERSION 2025/2026.




Parthogenesis - ANS development of an unfertilized egg



regeneration - ANS complete organism formed from fragment



sertoli cells - ANS cells found within the seminiferous tubules that provide metabolic support
for the spermatids



interstitial/leydig cells - ANS produce testosterone into seminiferous tubules



external fertilization - ANS process in which eggs are fertilized outside the female's body,
often in water



hermaphrodites - ANS organisms that contain both female and male sex organs.



reproduction decoupling - ANS time between reproductive steps



semelparity - ANS only reproduce once

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, iteroparity - ANS capable of 2+ periods of reproduction



complete cleavage - ANS cytoplasm completely divided



incomplete cleavage - ANS no complete division, yolk inhibits it



radial cleavage - ANS blastocoel formed, complete cleavage



spiral cleavage - ANS new cells rotated slightly, complete cleavage



mosaic development - ANS Pattern of animal embryonic development in which each
blastomere contributes a specific part of the adult body.



regulative development - ANS A pattern of animal embryonic development in which the fates
of the first blastomeres are not absolutely fixed. loss of cells doesn't affect embryo



epiblast - ANS the outermost layer of an embryo before it differentiates into ectoderm and
mesoderm. gives rise to embryo proper



hypoblast - ANS forms yolk sac



syncytium - ANS nuclei divide without a membrane surrounding each. in insects



sea birds salt excretion method - ANS nostrils




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