Food Chain and Food Web. Food chain is a linear sequence of organisms which starts from producer organisms and ends with decomposer species. Food web is a connection of multiple food chains. Food chain follows a single path whereas food web follows multiple paths.
The answer would be B) RR Lyrae Variables.
Answer:
ai) P= Red blood cell Q= Alveoli
ii)1. It gives the lungs a large surface area to volume ratio.
2. It is moist and thin.
b) P has a disc or biconcave shape which allows the O2 to bind to it with the help of a protein called haemoglobin for it to be transferred to various parts of the body.
c) Carbon monoxide will bind to the haemoglobin to form carboxyhaemoglobin causing oxygen disruption
Hello! Allow me to help!
Your question: Prove that air is a mixture of gases
My answer: Air is a mixture and not a compound because: Air does not have a formula like a mixture, while compounds have a fixed formula. When air is formed by gases, there is no energy change. Components of air can be physically separated.
Why is this correct? Good question! Allow me to explain: Air is composed of various gases such as nitrogen, oxygen, carbon dioxide, inert gases and so on.Moreover , dust particles and water vapour are also present in the atmosphere because of which air is mixture.
Hope this helps! UwU
-Maxwell