The organ that creates urea are the kidneys..
Answer:
I can help at anytime, but I don't know how to contact you with brainly.
Explanation:
It depends on the species and its primary threats, there is no universal solution. Many South East Asian species are primarily threatened by poaching ("Empty forest syndrome"), whereas many "reptiles" and amphibians from Madagascar can apparently cope with fairly high levels of collection (e.g. Golden Mantella [Mantella aurantiaca]), while the loss of their often small habitat is the primary threat.
Answer:
seems you forgot the "followings" but here are some known limiting factors
Explanation:
Exercise,Physiology, Mindset, Nutrition and Genetics.
Pollution of water and soil. The poison in fertilizer and pesticides will seep into groundwater supplies and contaminate the water.