Answer: Traditional economy
Explanation:
In a traditional economy the use of scarce resources and nearly all other economic activity results from ritual, habit, or custom. Individuals are generally not free to make decisions on the basis of what they want or would like to have. They are normally ruled by elders or leaders with sufficient expertise to judge and decide about economic policies or decisions, mostly concerned with proper distribution of goods. Habit and custom also dictate most social behavior. A given community or group of people engage in different activities individually to produce goods or services that are required by the rest of the group.a society with a traditional economy, Instead, their roles are defined by the customs of their elders and ancestors.
Alleles on homologous chromosomes determine traits.
Answer:Algae contributes to the phosphorus cycle
Explanation:Algae are organisms which have distinct chlorophyll and are autotrophic in nature .Most of them live in water.Algae include the Unicellular chlamydomanas and the multicellular sea weed.some algae are colonial and some are filamentuous.Algae possess chlorophyll, carotenoids and phycobillins as pigments.
Algae are important primary producers in the water bodies and produces a significant portion of oxygen.
Some algae eg diatoms are fossilized due to their glass cell wall and are known as diatomaceous earth, which has various uses such as abrasives,tooth paste and as filters.
Red algae produces calcium carbonate which forms coral reefs.
The products of some algae are used as solid gels and source of agar for microorganism culture.
Answer:
The answer is D.) Mercury