How are food chains and food webs related

The food webs is formed by several food chains. This is the relationship between the two systems.

Explanation:

Food web is a set of interconnected food chains. The food web represents the many relationships between organisms in an ecosystem.

Ecosystem is the place or environment in which mutual relations between all beings that inhabit it develop. The same living being inserted in an ecosystem can belong to different food chains, playing different roles.

It can feed another living being or serve as food. In the process, the food chains end up meeting and forming a food web.

Food chain is a sequence of living beings that are divided into producers, consumers and decomposers. In the food sequence, living beings feed on those who go before them in the chain, to then be eaten by those who are following, according to the hierarchy.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!