<span>hello there hester , i would say needed to form cell membranes</span>
Answer:
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
Answer:
Forest plantations are forest that stands established by planting and/or seeding in the process of afforestation or reforestation.
Explanation:
Hope this helped!
Have a supercalifragilisticexpialidocious day!
Answer:
The definition of energy is the ability to do work.
One way to think abnout is whenever you have a lto of eneergy you can do a lot of work, but with little energy you can't do much work.
Answer:
Oxygen levels stay above 15 percent starting 200 million years ago
Explanation:
Atmospheric oxygen levels are related to the evolution on Earth and changes in geochemical cycles that involve climate variations.
The presence of O
2 and evolution of oxygen gave new opportunities to the life on Earth. Oxygen levels in atmosphere have fluctuated between 15% and 35% of atmospheric volume, since the start of the Cambrian period.
So, form the starting 200 million years ago, oxygen level stay above 15 percent and the correct option is "B".
