Zoology
During a chemical communication, species using a chemical to attract animal of opposite sex but of same species is called
hormones
chemical messenger
pheromones
nerves
pheromones
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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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