Structural Organisation in Animals Notes

Choose the correct statements regarding frog’s anatomy: A. Hepatic portal system is the special venous connection between liver and intestine. B. There are twelve pairs of cranial nerves arising from the brain. C. The ureters and oviducts open separately into the cloaca in female frogs. D. Hind-brain consists of cerebellum, medulla oblongata and optic lobes. E. Sinus venosus joins the right atrium of heart. Choose the correct answer from the options given below:

Which of the following features is used to identify a male cockroach from a female cockroach?

Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system: