Question
Which of the following events occurs during sexual reproduction of flowering plants?
Which of the following events occurs during sexual reproduction of flowering plants? (a) Zygote is converted into fruit (b) Zygote is converted…
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Question
In a certain phase of mitosis nuclear reticulum is reconstructed, nuclear membrane reappears, regeneration of nucleolus takes place and Spindle fibre disappears. What is the phase?
In a certain phase of mitosis nuclear reticulum is reconstructed, nuclear membrane reappears, regeneration of nucleolus takes place and Spindle fibre disappears.…
Question
The natures of Biceps, Pyriformis and Latissimus dorsi muscles respectively are: (a) Adductor, Extensor, Abductor (b) Extensor, Flexor, Rotator (c) Flexor, Rotator, Adductor (d) Rotator, Abductor, Adductor
The natures of Biceps, Pyriformis and Latissimus dorsi muscles respectively are: (a) Adductor, Extensor, Abductor (b) Extensor, Flexor, Rotator (c) Flexor, Rotator,…
Question
Consider the differences between hormone and nervous system mentioned below and choose which ones are correct:
Consider the differences between hormone and nervous system mentioned below and choose which ones are correct: Hormone Nervous System I. Hormone is…
Question
Choose the correct pair from the following: (a) Lens – Accomplishes accommodation by changing the curvature of its plane (b) Retina – Holds the lens with the help of the suspensory ligament (c) Cornea – Secretes aqueous humor (d) Choroid – Helps to maintain the shape of the eyeball
Choose the correct pair from the following: (a) Lens – Accomplishes accommodation by changing the curvature of its plane (b) Retina –…
Question
Analyse the probable effects of the three problems. Mention the location and the name of one endangered species of a biodiversity hotspot distributed in and outside the geographical area of India
Three environmental problems of the Sunderbans are- imbalance in the numbers of prey and predators destruction of mangrove plants due to urbanisation…
Question
Write one symptom of each of two diseases which might be caused if suspended particulate matter enters into the respiratory tract through inspiration. Construct the sequence of events when agricultural runoff is drained into water bodies.
Write one symptom of each of two diseases which might be caused if suspended particulate matter enters into the respiratory tract through…
Question
Explain the theory of Darwin with regard to the lengthening of the neck of a giraffe. What do you mean by ‘Hot Dilute Soup’? [3+2=5]
Explain the theory of Darwin with regard to the lengthening of the neck of a giraffe. What do you mean by ‘Hot…
Question
With the help of a checkerboard show the phenotypic ratio of offspring produced in F2 generation as a result of a cross between a pure black coloured and rough-haired guinea pig and a pure white and smooth-haired guinea pig
With the help of a checkerboard show the phenotypic ratio of offspring produced in F2 generation as a result of a cross…
Question
Explain the following three significances of cell division
Explain the following three significances of cell division- Growth Repair Reproduction Tabulate the site of occurrences of meiotic cell division in the…