[a]complete the table below by ticking the appropriate group to which each of the listed elements required by plants belongs
Group
| elements | microelement | macroelement |
| hydrogen | ||
| copper | ||
| magnesium | ||
| zinc | ||
| phosphorus | ||
| manganese | ||
| boron | ||
| nitrogen | ||
| carbon | ||
| oxygen |
[b] [!] state three differences between the definition of a herbivore and a carnivore
[!!] four differences between the definition of a human and a goat
[c] what are milk teeth?
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Here is the completed table:
| Elements | Microelement | Macroelement |
|------------|--------------|---------------|
| Hydrogen | 
| |
| Copper | | |
| Magnesium | | |
| Zinc | | |
| Phosphorus | | |
| Manganese | | |
| Boron | | |
| Nitrogen | | |
| Carbon | | |
| Oxygen | | |
Microelements are elements that plants need in relatively small amounts, usually in quantities of less than 100 mg per kg of plant dry matter. They include copper, zinc, manganese, and boron, which are required for enzyme function and other metabolic processes.
Macroelements are elements that plants need in relatively large amounts, usually in quantities of more than 1 g per kg of plant dry matter. They include hydrogen, carbon, oxygen, nitrogen, phosphorus, magnesium, and potassium, which are required for plant growth and development.
