RNA because i just took the test
90% of the energy gets lost as heat in the ecosystem
All animals and plants are made of cells. Animal and Plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes.
Answer: The river source, river mouth, downstream, upstream, flood plain, main-river, meander, tributary, watershed boundary, and wetlands.
Explanation:
They are all rock with different size and shapes and are located in different areas possibly in the same areas but they all have there own unique textures from the photographs and 3 of them look like maybe a fossil of some type of when the dinosaurs where still around and the rocks on the top left corner look smooth and are a small type of igneous rocks. That have been soothed over the years.
