Animal Kingdom - Online Test

Q1. Which phylum contain acoelomic and triploblastic animals?
Answer : Option C
Explaination / Solution:

Those animals in which the developing embryo has a three germinal layer, mesoderm in between the ectoderm and endoderm, are called triploblastic animals and absence of internal body cavity is called as acoelomic.

Q2. Choose the odd one out based on coelom: Annelids, Molluscs, Platyhelminthes, Arthopods
Answer : Option B
Explaination / Solution:

Animals possessing coelom are called coelomates such as annelids, molluscs, arthropods, echinoderms, hemichordates and chordates.In Platyhelmites coelom is absent.

Q3. In Coelenterates, the cell shows
Answer : Option D
Explaination / Solution:

In coelenterates, the arrangement of cells is more complex. Here, the cells performing the same function are arranged into tissues, hence is called tissue level of organisation.

Q4. The cross-section of the body of an invertebrate is given below. Identify the animal which has this body plan.

Answer : Option D
Explaination / Solution:

In some animals, the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm. Such a body cavity is called pseudocoelom and the animals possessing them are called pseudocoelomates, e.g.,aschelminthes such as round worm.

Q5. The largest phylum of kingdom animalia is
Answer : Option A
Explaination / Solution:

Arthropoda is the largest phylum of kingdom animalia. It includes all insects, arachnids, myriapods and crustaceans. They are characterized by jointed limbs and cuticles.

Q6. Egg of reptiles and birds are
Answer : Option A
Explaination / Solution:

The eggs of reptiles and birds are polyecithal because they contain large amount of yolk inside the egg.

Q7. Animals of class Mammalia have
Answer : Option C
Explaination / Solution:

The animals of class Mammalia have seven cervical vertebra and four chambered heart. Mammalian are charecterised by presence of mammary gland to feed their young ones.

Q8. Alimentary canal is absent in
Answer : Option D
Explaination / Solution:

Alimentary canal is absent in Taenia solium. Taenia solium is a obligate parasite and obtain digested food from small intestine of human being as well as pigs. Pick the animals with true placenta

Q9. Pick the animals with true placenta
Answer : Option C
Explaination / Solution:

True placenta is present in Mongoose. Placenta help in transfer of nutrients and respiratory gases from mother to growing foetus.

Q10. Air bladder is present in
Answer : Option A
Explaination / Solution:

Air bladder is present in Actinopterygii. It is also known as ray finned fish due to presence of fin rays.