It has four heart chambers, just like birds and mammals.
1 to 2 to 4 in 30 mins !!
so every 15 min they becomes twice !!
eqn is : 2^n bacteria = 15n mins
so the final eqn for 120 mins is x= 2^8 bacterias = 256 !!
Your image isn't clear so I couldn't see the proper option but lucky for you I have seen this question before so I will tell you the answer.
The answer is option D (facilitated diffusion).
Correct answer: C). Thymine
The thymine, which is present in the DNA is replaced by the uracil in the RNA. Uracil is one of the four nitrogenous bases which are found in the RNA. The nitrogenous bases present in the RNA are adenine, guanine, uracil, and cytosine. While the nitrogenous bases found in DNA are Adenine, guanine, thymine, and cytosine.
Hence, thymine is the nitrogenous bases which are not found in RNA.