Calcium oxide based on the above explanation is an ionic compound.
Answer:
Concentrating Solar Power and solar panels.
Explanation:
In concentrated Solar Power technologies, mirrors tare used o concentrate the sun's light energy on the water container in order to convert it into heat to create steam which can drive a turbine that generates electricity while on the other hand, electricity can also be produced by installing solar panels that converts light energy into electricity using photovoltaic cell so both methods are different but the product is the same.
Answer:
In On the Origin of Species, Darwin claimed that there was a continual 'struggle for existence' in nature, in which only the fittest would survive. This theory came partly from his reading of Thomas Malthus's Essay on the Principle of Population.
Explanation:
Answer:
The inner wall of the small intestine is covered by numerous folds of mucous membrane called plicae circulares. The surface of these folds contains tiny projections called villi and microvilli, which further increase the total area for absorption.
Explanation:
Hope this helps
Answer:
The correct answer is E. Answer choices a, b, and c.
Explanation:
There can be many causes for a gram standard culture to appear red like if we use decolorizer for a long time then even the gram-positive cells present in the culture will lose their dye and become decolorized. Then they appear red after counterstaining with safranin.
If a gram-positive culture is older than 24 hours they can appear red because after 24 hours because the peptidoglycan starts degenerating and fails to persist crystal violet it their walls.
Iodine makes complex with crystal violet which is retained by peptidoglycan present in gram-positive cell wall. So when we forgot to add iodine crystal violet will not be retained and cells will appear pink.
Thus, the correct answer is E. Answer choices a, b, and c.
