The phylum chrordata comprise about how many species?

Related Mcqs:

Under a compound microscope chromosome is made of arms and___________?

A. Centromere B. Centrosome C. Chromatid D. Centromere...

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...

Thick, waxy & leathery cuticle around leaves is present in___________?

A. Hydrophytes B. Mesophytes C. Xerophytes D. Halophytes...

Detachment of myosin head and actin in rigor mortis occurs due to__________?

A. stored ATP in body B. hypercalcemia C. autolysis in body D. hyperactivity of mitochondria...

which of the following hepatitis is more contagious ?

A. HAV B. HBV C. HCV D. HDV...