Tag: Dr
Tropisms in plants
Tropic movements are growth responses towards directional stimuli. Please find free downloadable notes, exams and marking guides of agriculture, biology, Physics, chemistry etc. from digitalteachers.co.ug website. ... Read More
Flushing of ewes
Flushing is the practice of providing extra nutrition (usually energy) to ewes/does prior to and during the early part of the breeding season. Flushing increases weight gain ... Read More
Digestibility of feed
Digestibility is the proportion of the feed absorbed by the animal’s body or the difference between the amount of feed ingested and amount of ... Read More
Explain how price and output are determined under monopolistic competition in the short run and long run
Short run Short-run refers to that period in which a monopolist cannot change the fixed factors. However, the monopolist is free in determining price due ... Read More
What are the benefits of imprinting behaviours in animals?
Imprinting enable a young animal to acquire rapidly skill possessed by the parents It also enables a young animal to closely follow its parents which ... Read More
Explain how an end-product inhibition in an enzyme controlled reaction is a negative feedback
In an enzyme controlled reaction which occurs in series, high concentration of final product acts as an allosteric inhibitor of the enzyme controlling the first ... Read More
Explain why velocity of a liquid at a wide part of a tube is less than that at a narrow part.
Volume flow per second is constant, so by the equation of continuity AV = constant’, the velocity is inversely proportional to cross section area. ... Read More
Describe laboratory method of determining the universal gravitational constant, G.
Determining gravitational constant Two equal lead spheres A and B each of mass, m, are attached to end of a bar AB of length, L. ... Read More
Explain the effect of a couple on a rigid body.
A couple consists of two parallel forces that are equal in magnitude, opposite in sense and do not share a line of action Please Subscribe ... Read More
Draw a labelled diagram to show the main parts of a cathode ray oscilloscope (C.R.O)
Draw a labelled diagram to show the main parts of a cathode ray oscilloscope (C.R.O) Please Subscribe to promote this website. Subscription is free ... Read More
Sketch a pressure versus volume curve for a real gas undergoing compression
Sketch a pressure versus volume curve for a real gas undergoing compression Above the critical temperature, a real gas behaves ideally. Below the critical temperature ... Read More
What is hysteresis loss ?
What is hysteresis loss ? Hysteresis loss is the loss in energy due to the magnetic domains from one direction to the other as current ... Read More
An object is placed a distance f + x from a converging lens of focal length, f. the lens produces an image at a distance f+ y from the lens. Show that f2 = xy
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Explain the term interference of light
Explain the term interference of light Interference of light is superposition of waves from coherent sources leading to alternate regions of maximum and minimum intensity. ... Read More
Describe how the wavelength of monochromatic light can be measured using a diffraction grating and a spectrometer.
Describe how the wavelength of monochromatic light can be measured using a diffraction grating and a spectrometer. Solution Make the following adjustment The collimator C ... Read More
Plant Tissues-A level biology
https://youtu.be/P4Ub3mZzmmo structure, functions and adaptations of parenchyma, collenchyma, sclerenchyma, xylem and phloem tissues, for A-level biology students Read More
Preparation of gases (O-level chemistry)
Gases LABORATORY PREPARATION OF GASES Four main stages involved when preparing a gas in the laboratory. Production stage: here the reaction occurs in the reaction ... Read More