Phylum Arthropoda
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- Chitinous exoskeleton
- Metameric segmentation
- Parapodia
- Jointed appendages
Which of the following are examples of the Phylum Arthropoda?
Silverfish, starfish, prawn
Apple snail, honeybee, Euplectella
Sea star, scorpion, sea urchin
Cockroach, scorpion, prawn
The excretory organs of cockroach are
Green glands
Metanephridia
Malpighian tubules
Hepatic caecae
Which one of the following is the true description about an animal concerned?
Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine
Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)
Rat - Left kidney slightly higher in position than the right one
Frog - Body divisible into three regions - head, neck and trunk
The characters given below are of a phylum. Identify the phylum.
1. Their most distinctive feature is the rows of cilia that help them in locomotion
2. Soft bodied
3. They are exclusively marine creatures with specimens found in very deep seas
4. Predatory organisms with a defined mouth.
5. A very unique property of these animals is bioluminescence
Protozoa
Porifera
Cnidaria
Ctenophora
Which group of animals from the options below belong to the phylum arthropoda, based on their characteristic features like jointed appendages, exoskeleton and bi- or tri-segmented body?
Sponges, corals and pleurobrachia.
Hydra, sea anemone and jellyfish.
Flatworm, roundworm and snail.
Lobster, crab and spider.
- Platyhelminthes, Aschelminthes, Annelida and Arthropoda
- Porifera, Aschelminthes, Annelida and Arthropoda
- Porifera, Ctenophora, Platyhelminthes, Arthropoda
- Coelenterata, Ctenophora, Aschelminthes, Arthropoda
- Animals - Scorpion, Spider, Cockroach
Morphological feature - Ventral solid central nervous system - Animals - Cockroach, Locust, Taenia
Morphological feature - Metameric segmentation - Animals - Liver fluke, Sea anemone, Sea cucumber
Morphological feature - Bilateral symmetry - Animals - Centipede, Prawn, Sea urchin
Morphological feature - Jointed appendages
(a) Platyhelminthes
What is an example of a Lazarus taxon?
- Mollusca - pseudocoel
- Cnidaria - nematocyst
- Annelida - chloragogen cells
- Echidermata - water vascular system
Which is not an insect?
Limulus
Anopheles
Culex
Locusta
- Pila
- Sepia
- Unio
- None of these
What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?
Genus name | Characters | Phylum | |
(a) | Pila | (i) Body segmented (ii) Mouth with radula | Mollusca |
(b) | Asterias | (i) Spiny skinned (ii) Water vascular system | Echinodermata |
(c) | Sycon | (i) Pore bearing (ii) Canal system | Porifera |
(d) | Periplaneta | (i) Jointed appendages (ii) Chitinous exoskeleton | Arthropoda |
- Eimeria
- Nosema
- Ceratium
- Monocystls
- Myriapoda
- Crustacea
- Arachnida and Crustacea
- Insecta
give me some examples of living fossil? is Laminaria a living fossil?
- Cypraea
- Helix
- Umax
- Pila
- Reduced schizocoel
- Metameric segmentation
- Closed blood vascular system
- Mantle and mantle cavity
Which of the following is correct statement regarding cockroach?
Malpighian tubules are excretory organs projecting out from the colon.
Oxygen is transported by haemoglobin in RBC
Gizzard and mandibles grind the food
Nitrogenous excretory product is urea
(B) A terrestrial organism with three pairs of jointed appendages attached to each of its spires through the trachea.
(C) Soft-bodied animals enclosed in bivalves calcareous shell.
Identify a living fossil from the following:
Limulus
Pheretima
Ascaris
Periplaneta
I. Metameric segmentation
II. Parapodia
III. Jointed appendages
IV. Bilateral symmetry
V. Triploblastic
- I and II only
- III, IV and V only
- II and III only
- IV and V only