MCQS of Biology 1st Year Chapter 10

Which of the following is a feature of series deuterostomia

Coelom is formed due to splitting of mesoderm

Mouth arises from blastopore or anterior margin

Mesoderm is derived from wall of developing gut

Cleavage of zygote is spiral and determinate

Vertebrates that develop embryonic membranes around their embryo called

Amniotes

None of these

Embryotes

Abamniotes

The body of animals which can be divided into two equal halves only in one plan is termed as

Asymmetrical

None of these

Radically symmetrical

Bilaterally symmetrical

The skeleton of Athropds is made of

Calcium carbonate

Silica

Chitin

Both a and c

Which of the following is a motile coclenterate

Obelia

Jelly fish

Corals

Hydra

Animals that have their body cavity filled with parenchyma are called

Acoelomates

Coelomates

Pseudocelomates

None of these

Which of the following is not included in grade Bilateria

Nematodes

Annelids

Molluscs

Coelenterates