They're not.
In 1914, Thomas B. Osborne and Lafayette B. Mendel conducted studies on rats, which suggested that they grew best when fed a combination of plant foods whose amino acid patterns resembled that of animal protein. That makes sense, as all baby mammals, rats and humans included, grow best when fed the perfect food for baby mammals: their mother's milk. The term "complete protein" was coined to describe a protein in which all eight or nine essential amino acids are present in the same proportion that they occur in animals. "Incomplete protein" described the varying amino acid patterns in plants. It's a misleading term, because it suggest that humans (and other animals, one would assume) can't get enough essential amino acids to make protein from plants.
Fortunately, the theory that plant proteins are somehow "incomplete" and therefore inadequate has been disproved. All unrefined foods have varying amounts of protein with varying amino acid profiles, including leafy green vegetables, tubers, grains, legumes, and nuts. All the essential and nonessential amino acids are present in any single one of these foods in amounts that meet or exceed your needs, even if you are an endurance athlete or body builder.
More amino acids.
b Plant fats and c Animal proteins yield more than 4 kcalories per gram, with fats supplying 9 kcal/g and proteins providing 4 kcal/g. Plant carbohydrates and proteins usually provide 4 kcal/g or less.
because things that are delicious cost more
LBV (Low Biological Value) Proteins are foods that lack one or more essential amino acids. LBV proteins are found mainly in plant food. One exeption is gelatine which is obtained from an animal source.Source: What_do_you_mean_by_HBV_and_LBV_protein
Animal cells are typically more metabolically active than plant cells, requiring higher protein synthesis rates, hence the need for more ribosomes. Additionally, animal cells do not have the ability to perform photosynthesis for energy production, so they rely more heavily on protein synthesis for various cellular functions.
That depends on the animal or plant in question.
Uranium is more expensive, but the kWh in a nuclear power plant is more cheaper.
Plant
plant.
its an animal
Golgi bodies are found in both plant and animal cells. There may in fact be more Golgi bodies per cell in plant cells than in animal cells. Golgi Apparatus is found in both animal and plant cells. It is known as dictyosomes in plant cells and Golgi complex in animal cells. But the function remains the same.
Animal proteins are considered "first class" or "high quality" proteins because they contain all the essential amino acids required by the human body in the right proportions. This makes animal proteins more easily digestible and more readily absorbed compared to plant proteins. Additionally, animal proteins tend to have higher biological value, meaning they provide a more complete source of amino acids for human nutrition.