Zoology
Both cartilaginous and bony endoskeletons first appeared in the
vertebrates
invertebrates
microbes
microorganisms
vertebrates
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Space separates specialized end of motor nerve fiber and membrane of muscle fiber calledA. sarcomere
B. sarcoplasm
C. sarcolemma
D. sarcodina
Changes in pressure are sensed by the
A. baroreceptor
B. chemoreceptor
C. georeceptor
D. hygroreceptor
Combination of Darwinian evolutionary theory with population genetics is termed as
A. Darwin theory
B. natural selection
C. Lamarck theory
D. Neo-Darwinism
In mammals, tongue and teeth are included in
A. oral cavity
B. serosa
C. sphincters
D. esophagus
At point of vegetal half of embryo, there is invagination of cell called
A. blastulation
B. morulation
C. endoderm
D. gastrulation
In cnidaria, latticework conducted impulses towards body parts, by
A. nerves
B. nerve net
C. neurofibrils nodes
D. neurons
Muscles and excretory structures arise from
A. mesoderm
B. ectoderm
C. endoderm
D. layer
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