Animal Kingdom - Online Test
Q1. Which among the following is monoecious?
Answer : Option D
Explaination / Solution:
Earthworms and leeches are monoecious,contain both male and female reproductive organs in same individual.
Q2. Which phylum shows this type of germinal layers shown below?
Answer : Option D
Explaination / Solution:
The germinal layer shows diploblastic. Phylum Coelenterata shows this type of germinal layers.
Q3. Which phyla does not possess a coelom?
Answer : Option B
Explaination / Solution:
Phylum Platyhelminthes does not possess a coelom. Coelom is the body cavity in between organs. Animals with coelom are called coelomate and those without it is called acoelomate.
Q4. Bat and whales have ----- chambered heart.
Answer : Option D
Explaination / Solution:
Bat and whales have four chambered heart. Upper two chambers are called atrium and lower two chambers are called ventricle. All mammals have four chambered heart.
Q5. Which one of the following do not belonging to Urochordata?
Answer : Option B
Explaination / Solution:
Lancelets are classified in the phylum Chordata , subphylum Cephalochordata. lancelet, name for small, fishlike lower chordate also called amphioxus it shows many affinities with the vertebrates. There are about 30 lancelet species, most belonging to the genus Brachiostoma (formerly Amphioxus ). Lancelets are usually about 1 in. (2.5 cm) long, with transparent bodies tapered at both ends. There is no distinct head and no paired fins.
Q6. What is the main excretory organ in insects?
Answer : Option B
Explaination / Solution:
The insects belong to phylum Arthropoda and hence, the excretory organ is Malphighian tubules.
Q7. Which among the following is a gregarious pest?
Answer : Option C
Explaination / Solution:
Locust (Locusta) is a gregarious pest belonging to phylum Arthropoda.
Q8. Identify the animal given below. Mention its phylum.
Answer : Option D
Explaination / Solution:
The animal is identified as Euspongia which belong to phylum Porifera.
Q9. The excretory organ of Saccoglossus is
Answer : Option B
Explaination / Solution:
Saccoglossus belong to phylum Hemichordata and hence the excretory organ is proboscis gland.
Q10. A reptile having four chambered heart is
Answer : Option B
Explaination / Solution:
Reptiles generally possess three chamber heart, two upper chamber and single lower chamber. But in crocodile, the heart is four chambered having two atrium and two ventricles.
