In Pheretima, septa are absent between which segments?
3/4 and 9/10
4/5 and 8/9
5/6 and 7/8
7/8 and 6/7
A.
3/4 and 9/10
In Pheretima posthuma (earthworm) septa are absent between 3/4 and 9/10 segments.
In cockroach, larval and nymphal characters are maintained by
ecdysone
salivary glands
parotid gland
juvenile hormone
In frog heart, there are cardiac muscles which consists of fibres called
Purkinje fibres
myonemes
telodendria
columnae carnae
Malphigian tubules are
excretory organs of insects
excretory organs of frog
respiratory organs of insects
endocrine glands of insects
Inner lining of blood vessels is formed by
ciliated epithelium
squamous epithelium
cubical epithelium
columnar epithelium