Tomato's belong to the plant Family Solonaceae; most members of this family are poisonous in some form (or state).
Normally green tomato's contain alkaloids that can be poisonous, therefore it is not advisable to eat the green fruit. The same applies to potato's also Solonaceae) they can be poisonous if eaten when they are green.
Other Solonaceae plants that are toxic or have toxic effects are: peppers and tobacco plants.
Tomato Leaves
The leaves contain Oxalic Acid and should not be eaten.
the eaten leaves from bugs
yes
So long as the greens are things like lettuce, cabbage etc. and not toxic greens like tomato leaves.
No. Tomato is a rounded fruit, that is eaten as a vegetable.
It matters how badly the plants leaves were damaged. If it was just tempararly damaged yes, it could.
Some examples of plants that have roots, stems, leaves, fruits, and flowers that are commonly eaten include tomatoes, carrots, lettuce, and apples. These plants provide a variety of essential nutrients and are frequently incorporated into a balanced diet.
Rhubarb leaves contain oxalic acid. So too does the stem itself. Tomatoes also contain oxalic acid, especially the leaves. Oxalic acid is a poison. Oxalic acid is also found in potatoes and in peppers as well as in peas. Oxalic acid becomes concentrated in tomato paste. In the tomato, red tomato's have less oxalic acid than do green tomato's.
The fruit would drop to the ground then in spring new tomato plants would grow around where the parent plant used to be. Or the fruit is eaten by birds or animals then excreted in a different location.
Wash it.
Yes, mercury is very hazardous to health when touched, inhaled, or eaten.