A picture of the graph will help us help you
Photosystems<span> are functional and structural units of </span>protein complexes<span> involved in </span>photosynthesis<span> that together carry out the primary </span>photochemistry<span> of </span>photosynthesis<span>: the </span>absorption of light<span> and the transfer of </span>energy<span> and </span>electrons<span>.</span>
Explanation:
Cell is a structurel and functional unit of life
The right answer is Animal tissue.
Secondary producers are heterotrophic beings, essentially animals and fungi whose role is to circulate the matter and energy stored in the biomass of primary producers.
To a large extent, it can be considered that the sphere of decomposers and mainly saprophytic bacteria of the mineralization belongs to the secondary producers.
<span>Earth consists of four major layers: the crust, mantle, outer core and inner core. While most of the layers are made of solid material, there are several pieces of evidence suggesting that the outer core is indeed liquid. Density, seismic-wave data and Earth’s magnetic field provide insight into not only the structure but also the composition of Earth’s core</span>