Fishes, most of the invertebrates and amphibians are examples of ________ animals?

A. Endotherms
B. Ectotherms
C. Heterotherms
D. Homeotherms

Amphibians are considered to be evolved from___________?
A. Newts B. Varanope C. Dipnoi D. Hagfishes...
Second largest phylum of invertebrates is____________?
A. Porifera B. Arthropoda C. Mollusca D. Chordata...
_______ are the first group of invertebrates which have developed a closed circulatory system.
A. Nematods B. Annelids C. Arthropods D. Molluscs...
Most of the marine invertebrates are__________?
A. Osmoconformers B. Osmoregulators C. Both depend upon the concentration of sea water D. None of these...
The biggest group of invertebrates is_________?
A. Worms B. Insects C. Jelly fish D. None of these Submitted by: Neelam Parri...
Largest invertebrates is _____________ ?
A. Earthworm B. Euglena C. Squids D. Star fish Submitted by: Shahjahan junejo...
Deoxygenated blood first enters in _________ part in fishes?
A. Sinus venosus B. Right atrium C. Left atrium D. Conus arteriosus...
Which of the following fishes contained lungs?
A. Lamprey B. Perch C. Plaice D. Dipnoi...
Which of the following marine fishes are considered direct descendents of fresh water ancestors?
A. Hagfish B. Jelly Fish C. Star Fish D. Bony fishes...
Which of the following fishes excrete large volume of diluted urine?
A. Bony Marine fishes B. Fresh water fishes C. Both depending upon the surrounding water D. None of these...