Final answer:
The next two terms in the sequence are 25 and 36.
Step-by-step explanation:
The given sequence is 1, 4, 9, 16.
The pattern here is that each term is the result of squaring the next natural number.
For example, 1^2 = 1, 2^2 = 4, 3^2 = 9, and 4^2 = 16.
Following the same pattern, the next two terms would be 5^2 = 25 and 6^2 = 36.
Therefore, the next two terms in the sequence are 25 and 36.