Plant Physiology UPSC Questions

Biology

Plant Physiology MCQ Questions


13.
When any plane passing through the central axis of the body divides the organism into two identical halves, it is called
A.
Asymmetrical
B.
Radial Symmetry
C.
Both a and b
D.
Bilateral Symmetry
😑 View Answer Rough Work Error
ANSWER :
B. Radial Symmetry
14.
Where the body can be divided into identical left and right halves in only one plane
A.
Radial Symmetry
B.
Symmetrical
C.
Bilateral Symmetry
D.
Asymmetrical
😑 View Answer Rough Work Error
ANSWER :
C. Bilateral Symmetry
15.
What are animals that have two embryonic layers called?
A.
Protostome
B.
Diploblasts
C.
Radiata
D.
Comb Jellies
😑 View Answer Rough Work Error
ANSWER :
B. Diploblasts
16.
Which cells are arranged in two embryonic layers?
A.
Nitric and Sulphuric Acid
B.
Oxygen and Nitrogen
C.
Organ and Sperm
D.
Ectoderm and Endoderm
😑 View Answer Rough Work Error
ANSWER :
D. Ectoderm and Endoderm
17.
An ___________________ mesoglea is present in between the ectoderm and the endoderm.
A.
Undifferentiated Layer
B.
Ozone Layer
C.
Differentiated Layer
D.
Protostome Layer
😑 View Answer Rough Work Error
ANSWER :
A. Undifferentiated Layer
18.
Those animals in which the developing embryo has a third germinal layer, mesoderm in between the ectoderm and endoderm are called ________________ animals.
A.
Diploblasts
B.
Radiata
C.
Triploblastic
D.
Comb Jellies
😑 View Answer Rough Work Error
ANSWER :
C. Triploblastic