Answer I think the answer went to RNA
Nervous tissue is made up of neurons and supportive cells. Throughout the human body the neurons carry electrical and chemical signals, while nutrition is provided by the supportive cells.
Answer:
Q3:False, the oldest layers are found in the lower layers
Q2: A, a layer or a series of layers of rock in the ground
Q5: D
Q4: possibly D
Explanation:
Vein because they have valves to prevent back flow of blood.
In plants carbon dioxide is reduced into simple carbohydrates (e.g. glucose) with energy absorbed from the sun within the chloroplast.
This is also known as photosynthesis.
Hope this helps!
