The correct answer is the second option. Animals have two major types: vertebrates and invertebrates. Vertebrates are animals that have backbone while the invertebrates do not have one. Examples for vertebrates are birds and mammals while the latter are insects and squid.
Animals store most of their excess energy reserves as fat within the body. Whenever carbohydrates are not available, this stored fat provides the required energy. Fat is a very important part of the diet as it helps to maintain the body temperature. Fats also help to absorb certain vitamins like A, D, E and K.These vitamins are highly essential for our body and is present in our daily diet that we eat. These vitamins are also called fat soluble vitamins. It should also be kept in mind that there are good fats as well as bad fats. The increase in the amount of bad fats can be fatal and can be a reason for heart attack.
First one is a and second one is b
Answer:
false
Explanation:
Although the majority of the air we breathe is N2, most of the nitrogen in the atmosphere is unavailable for use by organisms. This is because the strong triple bond between the N atoms in N2 molecules makes it relatively unreactive. However organisms need reactive nitrogen to be able to incorporate it into cells.
