Which one of the following phylum is characterised by absence of true coelom?

Which of the following does not hold true for Animal belonging to Phylum Chordate?

A

Notochord present

B

Pharynx perforated by gill slits.

C

Heart is dorsal (if present)

D

A post-anal part (tail) is present

Which one of the following is the largest phylum in the animal kingdom?

A

Annelida

B

Arthopoda

C

Chordata

D

Protozoa

নিচের কোনটি Arthropoda পর্বের বৈশিষ্ট্য? (Which one of the following is a characteristic of phylum Arthropoda?)

A

হৃৎপিণ্ড দুই প্রকোষ্ঠবিশিষ্ট (Heart two-chambered)

B

ডায়াফ্রাম উপস্থিত (Diaphram present)

C

শ্বাসযন্ত্রের অঙ্গ: ট্রাকিয়া (Trachea: the respiratory organ)

D

প্যারাপোডিয়া চলনে সহায়তা করে (Parapodia help in locomotion)

Which is the only one example of Mollusca Phylum?

A

Locust

B

Butterfly

C

Scorpion

D

Octopus

Which one is the largest animal phylum?

A

Arthropod

B

Mollusca

C

Chordata

D

Coelomates

Boundary layer separation is characterised by one of the conditions given below, where 'Re' is the Reynolds number for the flow. Select the appropriate conditions.

A

[

A. Re

B. Re >> 1, accelerating flow

B

Re

C

Re >>1, decelerating flow

In Animal Kingdom classification, which of the following is not a Phylum?

A

Mollusca

B

Chordata

C

Coelomates

D

Anneldia

Which of the following Phylum are also called flatworms?

A

Mollusca

B

Chordata

C

Ctenophora

D

Platyhelminthes

Which of the following is the largest phylum in the animal kingdom in respect of number of species?

A

Annalida

B

Platyhelminthes

C

Chordata

D

Arthropoda

নিচের কোনটি Mollusca পর্বের প্রাণী? (Which of the following belongs to phylum Mollusca?)

A

Wuchereria bancrofti

B

Octopus punctatus

C

Neanthes virens

D

Aurelia aurita

Which one of the following phylum is characterised by absence of true coelom?

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