Given below are some important questions from Animal Kingdom for the CBSE exam!
Question: In some animal groups, the body is found divided into compartments with serial repetition of at least some organs. This characteristic feature is called
Answer: This characteristic feature is called Metamerism.
Question: Cells that can differentiate into any type of cells to perform different functions?
Answer: Interstitial cells can differentiate into any type of cells to perform different functions.
Question: Name some examples of animals that share a four chambered heart?
Answer: Crocodiles, birds and mammals are examples of animals that share four chambered hearts.
Question: Name some examples of animals that have non glandular skin.
Answer: chameleon and turtle both animals have non glandular skin.
Question: Name one characteristic that Birds and mammals share as a common feature.
Answer: Birds and mammals both of these share homoiothermic (warm-bloodedness) characteristic as a common feature.
Question: What is the importance of pneumatic bones and air sacs in Aves?
Answer: Pneumatic bones help Aves fly by keeping their bodies light. Air sacs help birds breathe and float.
Question: Name some oviparous animal?
Answer: frogs, snakes, lizards, hens, duck, fishes, shark, penguins, butterflies, octopus, etc
Question: Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called
Answer: pseudocoelomate have body cavity that is not lined by mesoderm.
Question: Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Answer: In Phylum Echinodermata adults exhibit radial symmetry and larva exhibits bilateral symmetry.
Question: What is metagenesis?
Answer: the reproduction cycle of an organism that alternates between sexual and asexual generations.
Points to remember
- The body is found divided into compartments with serial repetition of at least some organs. This characteristic feature is called metamerism.
- Interstitial cells can differentiate into any type of cells to perform different functions.
- Mammals have glandular skin and reptilians have non glandular skin.
- Birds and mammals both of these share homoiothermic (warm-bloodedness) characteristic as a common feature.
- Pneumatic bones help Aves fly by keeping their bodies light. Air sacs help birds breathe and float.
- pseudocoelomate have body cavity that is not lined by mesoderm.
- In Phylum Echinodermata: (adults → radial symmetry) and (larva → bilateral symmetry).
- Echinoderms are triploblastic and coelomate animals.
- round worms have organ-system level of body organization.
- water vascular system is characteristic of echinoderms.
- Bilaterally symmetrical and acoelomate animals are exemplified by Platyhelminthes.
- metagenesis refers to alternation of generation between asexual and sexual phases of an organism.
- body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum porifera.
- cnidaria taxon that represent both marine and freshwater species.
- Sea-fan (Gorgonia) living organisms completely lacks a cell wall.