A =The body of the Aschelminthes is circular in cross-section.
R =The also known as round worms
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A
A =Fertilisation is internal and development may be direct or indirect in round worm.
R =Females are longer than males
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option B
A =Aquatic annelids like Nereis possess lateral appendages, parapodia.
R =Which help in swiming
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A
A =Arthropods have Respiratory organs like gills, book gills, book lungs or tracheal system.
R =Excretion takes place through malpighion tubule is in Arthropods
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option B
A =Arthropoda is the largest phylum of Animalia which includes insects.
R =Over two-thirds of all named species on earth are arthropods.
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A
A =Body is covered by a calcerous shell in mollusca.
R =Molluscan have hard skeleton
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A
A =The space between the hump and the mantle is called the mantle cavity in which feather likegills are present.
R =They have respiration and excretory functions
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A
A =Water vascular system is found in Aves
R =They help in blood circulation
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option D
A =Exdcretory organs is gills in balansoglossus
R =Respiration takes place through proboscis
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option D
A = Phylum chordata is divided in to three subphylum.
R =They have urochordata, cephalochordata and vertebrata
A. Both Assertion and Reason are true and Reson is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C. Assertion is true but reason is false
D. Both Assertion and Reason are false.
Answer : Option A