Q: Sac Cyst O Siphon O
A: the correct answer are :
Q: What are the spaces in between traceculae important for?
A: Trabecula can be defined as the small, microscopic, tissue element that occurs in the form of a…
Q: Figure 8.11. Live anatomy of the mantle cavity. Left is female, right is male.
A: Mantle: It is a cavity in which a double fold holds the water space, it has an anus, gills, The…
Q: What is marginal in placentation?
A: The arrangement of ovule bearing cushions inside the ovary of a flowering plant is called…
Q: 1) Explain how serious membranes protect organs from infection? 2) Which serious membrane(s) is/are…
A: The serous membrane is a smooth tissue membrane consisting of two layers of the mesothelium, which…
Q: Describe the location and function of skin gills, tube feet,and the stomach.
A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…
Q: how did ancient fish make the evolutionary jump from gills to lungs
A: The “Age of fish”, the Devonian period, is marked by the diversification of various fishes, that are…
Q: Are gills internal or external?
A: Gill is generally a respiratory organ found in many aquatic organisms that use dissolved oxygen from…
Q: What is the function of an operculum and a swim bladder?
A: Vertebrata is a phylum in which the animals have a vertebrae or vertebral column to support the body…
Q: What is protostome ?
A: Protostomes are large and diverse group classified by their shared characteristics: these…
Q: What are deciduous ?
A: A forest is an area of land occupied by rich flora and fauna. It is a Large part of the ecosystem…
Q: How many tissue layers does Daphnia have?
A: Daphnia are planktonic crustaceans that belong to the Phyllopoda which is characterized by flattened…
Q: Explain diplontic?
A: A life cycle is the series of the stage by which an organism passes from one generation to the next…
Q: What are some functions of suckers?
A: The organisms of the ecosystem have significant properties. Depending upon the different features of…
Q: What are LRNIs?
A: LRNI stand for lower reference nutrients intake
Q: What is archegonium?
A: Archegonium is a female sex organ that is found in bryophytes, pteridophytes and most gymnosperms.
Q: What is the excretory matter in scoliodon ?
A: Scoliodon is cartilagenous fish which belongs to the phylum vertebrata of class elasmobranchii and…
Q: What are branchiae? Whatare examples of animals that“breath” through branchiae?
A: The animals are the most abundant living organism that are found in almost every habitat. They have…
Q: How do the gills of Labea and Scoliodon differ?
A: The genus Labeo includes oily fishes that inhabit the freshwaters. They are classified under the…
Q: Which morphological features must change to produce an unsegmented body cavity?
A: It has been observed that the three segmental groups are Ecdysozoa, Lophotrochozoa and vertebrata by…
Q: In case of aniamls kingdom describe the digestive system,respiratory system?
A: The multicellular eukaryotic organisms called metazoa form the biological kingdom, Animalia. The…
Q: What is the difference between atrium and coelom?
A: Cell organelles are structures within a cell that perform specific functions like controlling cell…
Q: What are the main parts offerns?
A: The group of vascular plants that reproduces via seeds and lacks flower and fruits is called fern.…
Q: The thoracic cavity is what to the abdominopelcic cavity?
A: The ventral cavity of the human body includes the anterior region of the body. The abdominopelvic…
Q: Why cutaneous respiration does not occur in shark's skin ?
A: Cutaneous respiration, or exchange of cutaneous gases, is a type of respiration in which gas…
Q: Based on the Ascaris structure, what is their pharynx for?
A: The genus consists of small-sized intestinal nematode worms is named as Ascaris. The organisms of…
Q: What is the survival value of encystment?
A: The unicellular eukaryotes are single-celled organisms with nucleus, mitochondria, and other…
Q: What is a cysticercus in Class Cestoda?
A: Platyhelminthes are the groups of invertebrates organism which do not possess coelom and are also…
Q: What is antheridium?
A: A plant includes two portions male and female in which the male gametophyte and female gametophyte…
Q: Draw the structure of nereis and hirudinaria and define its parts?
A: The animal kingdom has a wide variety of organisms under its umbrella. Each organism is distinct…
Q: What is a dihybrid?
A: Mendel after studying the pea plant genetics comes to few conclusions which he summarised into 3…
Q: Which serous membrane(s) is/are found in the thoracic cavity?
A: The serous membrane is a mesothelial tissue which forms the lining of particular cavities of the…
Q: What is the pH inside thestomach? Why is there a needto keep that pH level? How isit maintained?…
A: The digestive system includes the gastrointestinal tract and accessory organ that help in digestion.…
Q: What are gills made of?
A: Gill is a respiratory organ usually found in aquatic animals, like fishes, molluscs, and…
Q: Suppose a gastrovascular cavity were open at two ends,with fluid entering one end and leaving the…
A: Introduction All the organisms are made up of cell, though some organisms are complex multicellular…
Q: Where are Sporozoans found?
A: Micro-organisms are such small living organisms that are less than 0.1 mm, and can be seen only…
Q: How is respirationperformed by the larva ofamphibians?
A: Amphibians are adapted to live on both land and in water. In this way they are the link between…
Q: Which serous membrane(s) is/are found in the abdominopelvic cavity?
A: The abdominopelvic cavity comprises of the abdomen as well as pelvic cavity. The abdominopelvic…
Q: What is the function of the water vascular system?
A: The water vascular system is a hydraulic system that echinoderms, including such sea stars and sea…
Q: How many chambers does a scoliodon have?
A: The class Elasmobranchii consists of a large variety of cartilaginous fishes. Scoliodon is known as…
Q: What are crypts of lieberkuhn?
A: We know that the parts of the digestive system of human beings included are mouth, pharynx,…
Q: Where is perilymph found?
A: Perilymph is a fluid that has a similar ionic composition to that of cerebrospinal fluid and plasma.…
When did gills first appear?
Introduction:
Gill is found in several aquatic living organisms and acts as their respiratory organ. It draws in the dissolved oxygen present in the water and gives off the carbon dioxide.
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