Zoology
Proteins that are responsible for muscle contraction in animals, known as
actin only
myosin only
trypsin
actin and myosin
actin and myosin
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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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