Biology 11 Chapter - 9
Diversity Among Animals - 9
1.
The opening formed in the blastula of coelomates by the inward movements of cells is called as?
a) blastopore
b) coelome
c) zoospore
d) micropyle
2.
The animals in which the blastopore developes into mouth are called as?
a) protostomes
b) deutrostomes
c) diploblastic
d) triploblastic
3.
The animals in which the blastopore first developes into anus are called as?
a) deutrostomes
b) protostomes
c) diploblastic
d) triploblastic
4.
Which one of the following is Not a protostome?
a) echinoderms
b) arthropodes
c) mollusks
d) annelids
5.
Which one of the following is Not a deutrostome?
a) grasshopper
b) sea urchin
c) frog
d) sea star
6.
The first several cell divisions in the early embryo of coelomates is collectively known as?
a) gastrulation
b) blastulation
c) cleavage
d) fertilization
7.
Spiral cleavage is the charactristic of?
a) protostomes
b) deutrostomes
c) both of these
d) none of these
8.
The cleavage in which the fate of the cells is known is called as?
a) radial
b) indeterminate
c) spiral
d) determinate
9.
The cleavage in deutrostomes is?
a) Two answers are correct
b) indeterminate
c) determinate
d) radial
10.
Radial cleavage is found in?
a) protostomes
b) deutrostomes
c) both of these
d) none of these
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