Not necessarily. If you want to pray I suggest you follow these three simple rules.
Ask. This rule I want to greatly emphasize "BELIEVE", and then the third rule is receive. Think of it like this:
"Watch your thoughts, for they become words.
Watch your words, for they become actions.
Watch your actions, for they become habits.
Watch your habits, for they become character.
Watch your character, for it becomes your destiny." - Unknown
I don't think there are any.
They are designed to ensure the production, preparation and consumption of food is not detrimental to the health of any involved.
No praying mantis do not eat spiders
Activities involved in land preparation include clearing the land of debris, rocks, and vegetation; plowing or tilling the soil to break it up and improve aeration; leveling the land to ensure even water distribution; and incorporating any necessary amendments such as fertilizer or compost to improve soil fertility.
any insect smaller then he is
If you mean by worship the praying to Allah (or God in English and same God worshiped in Judaism and Christianity), then the official place of worship is called masjid (or mosque in English). However, Muslims are allowed to practice praying ritual worship in any dry clean place (office, home, open clean areas, ship, during flights, ... ).
Yes, a praying mantis will usually eat any insect small enough for it to catch, such as a fly.
No there is no special preparation of the body.
A good education is preparation for life and a career
Yes. A praying mantis will eat any insect smaller than itself, including other mantises.
Christianity is an outgrowth of Judaism.
Christianity does not have any rules about what you can or can not eat.