Proteins, mainly...
the rats eat meat as humans do
All energy is derived from the sun. Sun gives plants energy to undergo photosynthesis so we get crops which we humans can consume and obtain energy from these crops such as corn. From the crops animals such as cattle can consume it and from this we get meat which humans can convert to energy to survive.
yes
Leopard meat, which is generally not consumed by humans.
yes
humans
Ivory and meat.
Humans use food for energy.
About 69 lbs of meat.
No, humans do mot NEED to eat meat but they do need things such as iron and other nutrients that meat supplies. If someone stopped eating meat they would have to be careful of their well being and have many supplement's.
Humans gain energy directly from plants by eating the plants themselves in the form of fruits, vegetables, and grains. We gain energy from them indirectly by eating the meat of animals that eat plants.
all that i can think of is gives humans meat to eat