Cell walls are made of cellulose, a complex carbohydrate. Which of the following compounds is the basic unit of the cell wall? a
a
Ob
sugars
amino acids
nucleic acids
lipids
(
c с
d

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

What occupation did muhammad have before the first revelation

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite