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
In cockroach, larval and nymphal characters are maintained by
ecdysone
salivary glands
parotid gland
juvenile hormone
The female genital pore of Pheretima posthuma located upon the segment
14th
16th
18th
15th
A.
14th
in Pheretima posthuma, female genital pores are found in segment 14th and a pair of ovary is on segment 13th.
Genital papillae occurs in 17th and 19th segment and male genital apertures are present in segment 18.
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