A population is A. all plant species that exist in a single region at a single time. B. all individuals of a single species that exist together in a given region. C. the sum of all individuals of a species that live in different ecosystems. D. all similar animal species that live in the same ecosystem.

B

Explanation:

a population in the ecosystem can  be defined as all the individual of a species that exist together at a given place and time.

a.indigo and cochineal

b.animal hides

c.silver and gold

e.cacao beans and sugarcane

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.