Answer:
oxygen
Explanation:
cells use to produce energy during cellular respiration
Theres the shoot system and the root system
the shoot system is above ground and includes the plants organs which are the leaves,stem,buds and flowers
The root system is below ground and includes roots as well as modified stem structures such as tubers and rhizomes
An economy – householdand is an area of the production, distribution and trade, as well as consumption of goods and services by different agents. Mark as brainliest
Usually the average growth cycle of eyebrows is 5 to 7 weeks, but it can be shorter or longer depending on various factors such as, your age, metabolism, and weight.