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a) Which vitamin helps to maintain resistance to infectious diseases?
b) Name two foods which are a good source of this vitamin.
a) Vitamin A (retinol) helps maintain resistance to infectious disease.
b) Liver, cheese, butter, margarine, milk, eggs, green vegetables, carrots (any two) are a good source
Q. Do echinoderms have an excretory system? How is excretion done in these animals? Echinoderms do not have an excretory system their excretions are eliminated by diffusion.
Define the Diet for Children? By preschool stage, their routines are set' and dietary choices become more and more firm by the time they are in senior school. Further, there is
what are protein? What is the constituential uni. Of protein? Briefly explain the various forms of protein?
Chromatin is made of DNA molecules associated to proteins known as histones.
Q. What is the notochord? How is this structure formed? The notochord is a rodlike structure that outlines the supporting axis of the embryo and gives birth to the vertebral co
Disease Control and Prevention reports: Body Mass Index is a reliable indicator of body fat for most children and teens. BMI is calculated from a child's weight and height is
Define Proteins as biological buffers? Proteins have the ability to accept or donate hydrogen ions and by doing so they serve as biological buffers. In blood, there are three i
Q. What are respiratory pigments? What are some respiratory pigments and in which animal groups can each of them be found? Respiratory pigments are molecules present in the blo
An A=T mispairing leads to an A=C substitution. The other DNA helix will contain a(n) __ pair. a. A=C b. A=T c. G=C d. B=Q e. T=T Can you also explain it please so if I'm ask
Ancestral Unicellular Organism So far in this unit we have considered the characteristic of body designs that are shared by various animals and the different body plans that d
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