Doubtly
@Doubtly · Joined Feb 2021
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- Windows 98 is a __________ operating system. i) Single user multitasking ii) Uni-programming iii) Multiuser Single user multitasking 2
- _______is a service of memory management of operating system. Allocate a chunk of memory 2
- Program under execution is known as __________. i) File ii) Information iii) Data iv) Process Program under execution is known as Process 2
- ‘Open files’ is a system call provided under _________ of operating system. Information management 2
- Operating system is a __________ i) hardware ii) software iii) printer iv) input device software operating system is a software 2
- Write the differences. Simple tissue and complex tissues in plants. Simple Tissue in plants Complex Tissues in plants (i) They are made up of only one type of cells. (i) They are made up of more than one type... 1
- Write the names of the following tissues. a. Tissue lining inner surface of mouth. b. Tissue joining muscles and bone a. Tissue lining inner surface of mouth. Answer: Squamous epithelium. b. Tissue joining muscles and bones. Answer: Tendon c. Tissue responsi... 1
- Identify the odd word and explain why it is odd. c. Cartilage, bone, tendon, cardiac muscle. Cardiac muscle is the odd one out because rest of the three are connective tissues while cardiac muscle is a type of muscular tissue. 1
- Identify the odd word and explain why it is odd. b. Epithelium, Muscle fibre, nerve fibre, epidermis. Epidermis is the odd one out because all the other are Permanent tissues. Epidermis is an outer layer of cells found in plants. 2
- Identify the odd word and explain why it is odd. a.Xylem, phloem, permanent tissue, meristematic tissue. Meristematic tissue is the odd one out because xylem and phloem are types of permanent tissues. 1
- Each of the following statements is wrong. Rewrite them correctly by changing either one or two words. a. Ciliated epithelium is present in respiratory tract. b. Cuboidal epithelium is present in kidneys. c. Aerenchyma helps the plant to float... 2
- Why it is necessary for people to have their blood examined before their marriage? It is necessary for people to have their blood examined before their marriage because genetic disorders are mainly transmitted through the r... 2
- Explain the structure, function and types of RNA. Answer: RNA (ribonucleic acid) is usually a single-stranded nucleic acid made of ribonucleotides; its main job is protein synthesis. Its thr... 1
- Explain your opinion about the DNA fingerprinting. DNA fingerprinting is the technique in which the sequence of the genes in the DNA of a person, i.e., the genome of the person is identified.... 1
- Describe the structure of DNA molecule. Answer: DNA is a double helix made of two long strands of nucleotides, twisted around each other like a spiral ladder (Watson and Crick mode... 1
- What is mean by chromosome? Explain its types. The structure in the nucleus of cells which carries hereditary characteristics is called as chromosome which is mainly made up of nucleic ac... 1
- Is it right to avoid living with a person suffering from a genetic disorder? No, it is not right to avoid living with a person suffering from a genetic disorder. Genetic disorders are transmitted from parents to offsp... 1
- Distinguish between monohybrid and dihybrid cross. Monohybrid cross Dihybrid cross (i) Cross involving a single pair of contrasting characters is called monohybrid cross. (i) Cross involving... 1