Si en un ecosistema un factor-por ejemplo si se eleva la temperatura mas de lo normal-¿como afectaria los factores bioticos del mismo ecosistema?

Why is the united states a constitutional republic? why is china, which has a constitution, not one? compare the forms of government in the united states and china.

What is the contribution of women in making the family and in the nation?

Plz 20 ! in a citizens elect the president as head of government separately from the legislature? a: parliamentary democracy b: communist state c: presidential democracy d: autocratic state