Animal Kingdom quiz

Which phylum is known as the phylum of pore-bearers?

Comb plates are found in:

Flame cells are excretory structures of:

Which of these is a pseudocoelomate?

The largest phylum of the animal kingdom is:

Radula is a feeding organ found in:

Which of the following is an egg-laying mammal?

Air bladder is found in:

Which animal has a four-chambered heart but is a reptile?

Metamerism is a characteristic feature of:

What are the levels of organisation in animals? Give an example of each. (2 marks)

Why are coelenterates called diploblastic? (2 marks)

What is the function of the canal system in sponges? (2 marks)

Why are echinoderms said to show radial symmetry only in the adult stage? (2 marks)

What are parapodia and nephridia? In which animals are they found? (2 marks)

Distinguish between Urochordata and Cephalochordata. (2 marks)

What are the main features of Cyclostomata? (2 marks)

What are the features of amphibians that help them live both on land and in water? (2 marks)

How are birds adapted for flight? (2 marks)

Name two features that distinguish mammals from other vertebrates. (2 marks)

A sponge filters water through its ostia and passes it out of the osculum. If one sponge filters 20 litres of water per day, how many litres would 150 sponges filter in a week? (3 marks)

An earthworm has about 100 segments, of which segments 14, 15 and 16 form the clitellum. Calculate the percentage of segments that form the clitellum. (3 marks)

In an Obelia colony, 80 zooids are polyps and 20 are medusae. Calculate the ratio of polyps to medusae and the percentage of medusae. Which form reproduces sexually? (3 marks)

A student made a list of 30 vertebrates: 6 fishes, 4 amphibians, 5 reptiles, 7 birds and 8 mammals. Calculate the percentage of homoiothermous animals in the list. (3 marks)

An insect has 3 pairs of legs, a spider 4 pairs and a centipede 15 pairs (illustrative). Calculate the total number of legs in 5 insects, 3 spiders and 2 centipedes. Which phylum do they all belong to? (3 marks)

Read the passage and answer the questions. A student found an animal in a pond. It had a soft body covered by a calcareous shell, an unsegmented body with a distinct head, a muscular foot and a visceral hump. A soft and spongy layer of skin formed a mantle over the visceral hump. It had a file-like rasping organ in the mouth. (i) Identify the phylum. (ii) What is the rasping organ called? (iii) Name two other animals of this phylum. (5 marks)

Read the passage and answer the questions. Coelenterates are aquatic, mostly marine, sessile or free-swimming, radially symmetrical animals. They have cnidoblasts on the tentacles and the body. They exhibit tissue level of organisation and are diploblastic. Some have a skeleton of calcium carbonate. They exhibit two basic body forms, polyp and medusa. (i) What are cnidoblasts used for? (ii) Name a coelenterate that forms coral reefs. (iii) Explain metagenesis in Obelia. (5 marks)

Read the passage and answer the questions. Chordates are characterised by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. In Urochordata, the notochord is present only in the larval tail, while in Cephalochordata it extends from head to tail and persists throughout life. In Vertebrata, the notochord is replaced by a vertebral column in the adult. (i) Name the three fundamental features of chordates. (ii) Give one example each of Urochordata and Cephalochordata. (iii) 'All vertebrates are chordates but all chordates are not vertebrates.' Explain. (5 marks)

Read the passage and answer the questions. Reptiles are mostly terrestrial animals and their body is covered by dry and cornified skin with epidermal scales or scutes. They do not have external ear openings. The tympanum represents the ear. Limbs, when present, are two pairs. The heart is usually three-chambered, but four-chambered in crocodiles. (i) Why are reptiles called poikilotherms? (ii) Name two poisonous snakes. (iii) How is their skin adapted to life on land? (5 marks)

Read the passage and answer the questions. Mammals are found in a variety of habitats: polar ice caps, deserts, mountains, forests, grasslands and dark caves. Some have adapted to fly or live in water. The most unique mammalian characteristic is the presence of milk-producing mammary glands. They have two pairs of limbs adapted for walking, running, climbing, burrowing, swimming or flying. (i) Name a flying mammal and an aquatic mammal. (ii) Name two other features of mammals. (iii) Which mammal lays eggs? (5 marks)

Explain the basis of classification of animals using levels of organisation, symmetry, germ layers, coelom, segmentation and notochord. Draw a flowchart. (6 marks)

Describe the salient features of Porifera, Coelenterata and Ctenophora with examples and diagrams. (6 marks)

Describe the salient features of Platyhelminthes, Aschelminthes and Annelida with examples. Compare their body cavities with labelled diagrams. (6 marks)

Describe the features of Arthropoda, Mollusca and Echinodermata with examples. Why is Arthropoda the largest phylum? (6 marks)

Describe the salient features of the vertebrate classes Amphibia, Reptilia, Aves and Mammalia with two examples each. (6 marks)