- Gas exchange
- Artificial Incubation
- Natural incubation
3a. Rangeland is an extensive area of land which contains corsage grasses and legumes and other herbage plant where animals like cattle,sheep and goat can graze.
A pathogen is defined as an organism causing disease to its host, with the severity of the disease symptoms referred to as virulence.
(ii) Harsh weather conditions
(iii) injury’s and poorly treated wonds
(iv) Over crowding and controlled mating
i. Raising animals humanely can use less feed, fuel and water than intensive farming, reducing costs and pollution.
ii.Humane farms can create jobs, boost profits and keep local food supplies healthy.
iii.By farming crops and livestock, humane farms can reduce environmental damage – recycling nutrients and improving the soil.