BIOLOGICAL CLASSIFICATION(Animals II) biology MCQ’s questions answers

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BIOLOGICAL CLASSIFICATION( Animals II)

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Question 121 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
The digestive system of Platyhelminthes is called incomplete digestive system because:
A
They have hooks and suckers which helps them to absorb nutrients from host.
B
They are patristic forms of nutrition.
C
They have a single opening which serves as both mouth and anus.
D
They are protostomes and anus develops first from blastopore.
Question 122 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Choanocytes are present in ..... of Leucosolenia
A
Incurrent canals
B
Radial canals
C
Excurrent canals
D
Spongocoel
Question 123 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Which is true of Taenia
A
Anterior mature proglottides contain male organs while ripe proglottides have uterus filled with eggs
B
All proglottides have both male and female organs
C
Female organs are confined to anterior proglottides
D
Male organs are confined to posterior proglottides
Question 124 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Members of which of the following phyla exhibit adaptations so widely varies environmental conditions
A
Coelenterata
B
Porifers
C
Echinoddermata
D
Mollusca
Question 125 [CLICK ON ANY CHOICE TO KNOW MCQ multiple objective type questions RIGHT ANSWER]
Identify the characteristics that distinguish Monotremes from metatherians:
(i) Mammary glands and abdominal grooves.
(ii) Presence of marsupium.
(iii) Laying cleiodic eggs.
(iv) Possess muscular diaphragm and epidermal hairs.
(v) Giving birth to the young ones.
A
(ii) and (v).
B
(i), (ii), (iv) and (v).
C
(i), (iii) and (v).
D
(i) and (iii).
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