Choose the correct option. Write notes on—. Word game : Use the clues to work out the words. Protruding voice box in boys.
Glands without ducts. Endocrine gland attached to brain. Secretion of endocrine glands. Pancreatic hormone. Female hormone. Male hormone. Secretes thyroxine.
Another term for teenage. Hormone reaches here through blood stream. Voice box. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning. Unseen passages may contain one or many paragraphs. This is one of the important yet easy parts for a student to get marks.
Students should thoroughly study and understand the passage to answer the related questions. The unseen passages are there just to test the The acquisition of 21st century competencies of communication, critical and creative thinking and the ability to locate, understand and reflect on various kinds of information has become more crucial for our learners.
It is well accepted that Reading Literacy is not The portal for moderation and finalization of results for Class is being opened from As Board has to declare the result latest by Last year CBSE had to reduce the syllabus because of the pandemic situation but it was not very effective because there were no examinations. This year to avoid any confusion and conflict, CBSE has decided to reduce the syllabus into term 1 and term 2. In order to select participants who will be featured in Pariksha Pe Charcha programme The marks obtained in the board exam decide the college in which one can study.
In class 12 the syllabus of each and every subject increases vastly and it is difficult to cover up every point. In English also Download PDF. Download solutions for Science Free Sample Papers with solutions for Class 8 Science, download Printable Worksheets Download Worksheets for Class 8 Science made for all important topics and is available for free download in pdf, chapter wise assignments or booklet with The male hormone is called a estrogen b testosterone c thyroxine d insulin Answer Answer: b testosterone Question 9.
The female hormone is called a estrogen b testosterone c adrenaline d none of these Answer Answer: a estrogen Question Menstruation occurs once in about a 28 to 30 days b 25 to 30 days c 45 to 50 days d none of these Answer Answer: a 28 to 30 days Question The number of chromosomes present in human cell are a 25 pairs b 22 pairs c 23 pairs d none of these Answer Answer: c 23 pairs Question The number of sex chromosomes are a three b two c four d none of these Answer Answer: b two Question The age of menopause stage is a 45 to 50 years b 40 to 45 years c 50 to 55 years d none of these Answer Answer: a 45 to 50 years Question The gametes have only a one set of chromosomes b two sets of chromosomes c three sets of chromosomes d none of these Answer Answer: a one set of chromosomes Question Production of thyroxine requires a magnesium b iodine c sodium d bromine Answer Answer: b iodine Question Pancreas is responsible for maintaining a blood pressure b fat metabolism c blood glucose level d electrolyte balance Answer Answer: c blood glucose level Question The female hormone secreted by the ovaries at the onset of puberty is a estrogen b insulin c adrenalin d testosterone Answer Answer: a estrogen Fill in the Blanks Question 1.
Answer Answer: Adolescence Question 2. Answer Answer: puberty Question 3. Answer Answer: adolescents, teenagers Question 4. Answer Answer: menopause Question 6.
Answer Answer: pituitary Question 7. Answer Answer: insulin Question 8. Answer Answer: Goitre Question 9. Answer Answer: ductless Question Answer Answer: Testes Question Answer Answer: Ovary Question Answer Answer: insect Question Answer Answer: thyroxine Question Answer Answer: iodine Question Answer Answer: Adrenaline Question Answer Answer: adolescence Question Answer Answer: endocrine Question Answer Answer: hormones Question Answer Answer: balanced Question Answer Answer: ovaries Question Answer Answer: insulin, thyroxine, adrenalin True or False Question 1.
The age of adolescence is 15 to 20 years. Answer Answer: False Question 2. The female puberty starts at the age of 12 to 14 years.
Answer Answer: False Question 3. Answer Answer: True Question 4. Insulin is secreted by pituitary gland. Answer Answer: False Question 5. The chemical substances secreted by endocrine glands are called hormones. Answer Answer: True Question 6. Estrogen is female hormone. Answer Answer: True Question 7. Testosterone is male hormone. Answer Answer: True Question 8. There are 23 pairs of chromosomes in the nuclei of human cell.
Answer Answer: True Question 9. Menstruation stops in men permanently around the age of 45 to 50 years. Answer Answer: False Question The estrogen hormone develops deeper voice in males at puberty. The sex of an unborn child is determined after a foetus is formed.
This is an age in teenagers, where they need specific attention from their parents or guardians. The age introduces a teenage boy or girl with plenty of changes in their mental and physical attributes. This is primarily because psychological and physical growth is taken over by puberty.
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