This depends on the specific type of cake and biscuit, and the ingredients used in its preparation.

In the case of vegan cakes and cookies, they do not contain any animal ingredients, including eggs, milk, etc. Therefore, for vegans, these cakes and cookies are vegetarian.

However, if cakes and biscuits contain animal ingredients such as eggs, milk or cream, they are not considered vegetarian.

So, the question of whether cakes and biscuits are considered vegetarian needs to be judged based on specific circumstances. It is recommended that when choosing food, carefully check the ingredient list on the food label to determine whether it meets your dietary habits.