Answer:
The scheme most often used currently divides all living organisms into five kingdoms: Monera (bacteria), Protista, Fungi, Plantae, and Animalia. ... The Prokaryotae are now divided into two domains, the Bacteria and the Archaea, as different from each other as either is from the Eukaryota, or eukaryotes.
Answer:
4. gives the relative number of atoms of each element per formula unit
Explanation:
An empirical formula -
It refers to the formula which determined the simplest whole - number ratio of all the atoms in a given species , is referred to as an empirical formula .
In simple terms ,
It is he smallest formula of the whole number which when multiplied by some whole number gives the actual structure of the compound .
Hence , from the given information of the question ,
The correct option for empirical formula is 4.
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Answer:
(i),(ii) and (iv)
Explanation:
Villi are finger-like outgrowths of the human intestine.
The main role of villi is to amplify surface area for rapid absorption of digested food. They have very tiny walls; the role of these walls is to pass digested nutrients through diffusion. These are directly connected to the blood vessels. Thus, the circulating blood can carry these nutrients away.
The correct answer is the first option.