Question
Which of the following scientists are credited with the
discovery and understanding of the excretory role of Malpighian tubules in insects?Solution
The combined work of Malpighi, Herold, and Meckel contributed to our understanding of insect excretory physiology.
Cinnabar is an ore of which metal?
Which of the following statements about glucose is incorrect?
The chemical name of 'baking soda' is:
How many protons are present in the nucleus of an oxygen atom?
Which substance is also known as 'Oil of Vitriol'?
What is the total number of carbon atoms in a molecule of butane?
The Biuret test is used to detect the presence of which substance?
Which gas is most abundant in the Earth's atmosphere.
The important ore of aluminium is-
What is the more common name for solid carbon dioxide?