Mention the function of the following
[question] Question. Mention the function of the following (a) Ureters in frog (b) Malpighian tubules (c) Body wall in earthworm [/question] [solution] Solution: (a) Ureters in frogs: A ureter acts as a urinogenital duct, which carries sperms along with urine in male frogs. (b) Malphigian tubules: Malphigian tubules are excretory organs in cockroaches. (c) Body wall in earthworms: In earthworms, the body wall consists of muscle layers. It helps in movement and burrowing. [/solution]...
Draw a neat diagram of digestive system of frog.
[question] Question. Draw a neat diagram of digestive system of frog. [/question] [solution] Solution: [/solution]...
Mention briefly about the circulatory system of earthworm
[question] Question. Mention briefly about the circulatory system of earthworm [/question] [solution] Solution: Earthworms (Pheretima) have closed blood vascular systems, which consists of the heart, blood vessels, and capillaries. The heart pumps blood for circulating it in one direction. Blood is supplied by smaller blood cells to the gut nerve cord and the body wall. Blood glands are present in the $4^{\text {th }}, 5^{\text {th }}$, and $6^{\text {th }}$ segments, which produce blood cells a...
Match the terms in column I with those in column II:
[question] Question. Match the terms in column I with those in column II: [/question] [solution] Solution: [/solution]...
Mark the odd one in each series:
[question] Question. Mark the odd one in each series: (a) Areolar tissue; blood; neuron; tendon (b) RBC; WBC; platelets; cartilage (c) Exocrine; endocrine; salivary gland; ligament (d) Maxilla; mandible; labrum; antennae (e) Protonema; mesothorax; metathorax; coxa [/question] [solution] Solution: (a) Areolar tissue, blood, and tendons are examples of connective tissues. Neuron is an example of neural tissue. (b) RBCs, WBCs, and platelets are the three most important components of blood. Cartilag...
Distinguish between
[question] Question. Distinguish between (a) Simple epithelium and compound epithelium. (b) Cardiac muscle and striated muscle (c) Dense regular and dense irregular connective tissues (d) Adipose and blood tissue (e) Simple gland and compound gland [/question] [solution] Solution: (a) [/solution]...
Describe various types of epithelial tissues with the help of labelled diagrams.
[question] Question. Describe various types of epithelial tissues with the help of labelled diagrams. [/question] [solution] Solution: Epithelial tissue lines the surface of a body and forms a protective covering. Epithelium cells are packed tightly together with little intercellular matrix. Epithelial tissue in the body is of two types. (a) Simple epithelium: It consists of a single layer of cells where cells are in direct contact with the basement membrane. It is further sub-divided into the f...
What are the following and where do you find them in animal body
[question] Question. What are the following and where do you find them in animal body (a) Chondriocytes (b) Axons (c) Ciliated epithelium [/question] [solution] Solution: Chondriocytes: They are cells of cartilages, and are present in small cavities within the matrix secreted by them. Axons: They are long, slender projections of neurons that help in carrying nerve impulses from the neuron body. Axons aggregate in bundles which make up the nerves. Ciliated epithelium: It consists of simple column...
What are the cellular components of blood?
[question] Question. What are the cellular components of blood? [/question] [solution] Solution: Components of blood include erythrocytes (RBCs), leucocytes (WBCs), and thrombocytes (platelets). These components form 45% of blood. They are suspended in the remaining fluid portion, called plasma. Mammalian erythrocytes are biconcave, coloured cells devoid of a nucleus. They help in transporting respiratory gases. Leucocytes or white blood cells are nucleated cells. They can be divided into two ty...
Distinguish between the following
[question] Question. Distinguish between the following (a) Prostomium and peristomium (b) Septal nephridium and pharyngeal nephridium [/question] [solution] Solution: [/solution]...
Draw a labelled diagram of alimentary canal of a cockroach.
[question] Question. Draw a labelled diagram of alimentary canal of a cockroach. [/question] [solution] Solution: [/solution]...
Draw a labelled diagram of the reproductive organs of an earthworm.
[question] Question. Draw a labelled diagram of the reproductive organs of an earthworm. [/question] [solution] Solution: [/solution]...
Answer the following:
[question] Question. Answer the following: (i) What is the function of nephridia? (ii) How many types of nephridia are found in earthworm based on their location? [/question] [solution] Solution: (i) Nephridia are segmentally arranged excretory organs present in earthworms. (ii) On the basis of their location, three types of nephridia are found in earthworms. They are: (a) Septal nephridia: These are present on both sides of the inter-segmental septa behind the 15th segment. They open into the i...