Question

1) In platyhelminthes
a)The embroyonic layers....ectoderm etc...,
b)The Body Is Asymmetrical
c)there is tissue level of organisation
d)body cavity is absent
2)Following organism is triplobkastic ,bilateral,marine and respires through gills
a)echinus
b)hirudinaria
c)balanoglossus
d)Physalia
3)Filaria worm is
a)Trichuris
b)wauchereria
c)ascaris lumbricoides
d)ancylostoma
4)which of the following is free living
a)ascaris
b)wuchereria
c)hirudinaria
d)Planaria​

Answer 1

Answer:

• For 1 st one the answer is option d
• 2nd one the answer is option d
• 3rd one is option but
• 4 th one is option d

Hope this answer helps you.