Ureters act as urinogenital ducts in

Which teeth fall out in mammals?

Which of the following is involved in the formation of endochondral bone?

Write the difference between (Any two):
$(a)$ Actin and Myosin
$(b)$ Red and White muscle fibres
$(c)$ Pectoral and Pelvic girdle

Study the following sentences:
$I.$ The accumulation of pyruvic acid in the muscle causes fatigue.
$II.$ $ATP$ is resynthesized in the muscle by the phosphorylation of $ADP$ by a phosphogen.
$III.$ Cori cycle involves muscles and liver.
$IV.$ The phosphogen in the vertebrate muscle is arginine phosphate.
The correct set of statements regarding muscle contraction is:

The bone of mammals contains Haversian canals which are connected by transverse canals known as