Question

which phylum/class has following characteristics state only their name
a)body segmented and joint legs with compound eyes
b)body having calcareous shell and ventral foot
c)spiny skinned organisms has radically symmetrical
d)bones light and hollow
e)external ear or pinna

Answer 1

The phylum/class having following characteristics:

a) Body segmented and joint legs with compound eyes - Phylum Arthropod

b) Body having calcareous shell and ventral foot - Phylum Mollusca

c) Spiny skinned organisms has radically symmetrical – Phylum Echinodermata

d) Bones light and hollow – Phylum Chordate

e) External ear or pinna – Class Mammalia

Answer 2

Answer:

C is the answer

Additional Information:

Characteristics of organic compounds are as follows:

• These are mad up of only a few elements C, H, O, N, S, X. (Cl, Br, I)

• These involve covalent bonds.

• These are generally gases or liquids.

• They have low melting and boiling points.

• They are combustible.

• They show molecular reactions.

• They show isomerism.

• These are non - conductors of electricity.

• There are generally insoluble in water but soluble in organic solvents.