Are tomato fruits and explain why

Yes

All fruits have a single seed or many seeds inside and grow from the flower of a plant. Even when this is the case, a tomato is still considered to be the fruit of the plant in botanical terms. Summary Tomatoes are botanically fruits because they form from a flower and contain seeds.

Molecules called lipids have long hydrocarbon chains that determine the way they act. they can be fats, oils, or hormones, and even exist in our cell membranes