Technically, us!
The last link in the food chain is typically apex predators, such as large carnivores like lions, sharks, or eagles. These predators are at the top of the food chain and have few or no natural predators themselves.
Plants.
There are many different food chains, so there are many second links, but in general the second link in a food chain is two words and it is a primary consumer.
Bacteria!
The second link in a food chain is typically referred to as the primary consumer, which feeds on the producer (first link) and is then consumed by the secondary consumer.
because it needs a lot of energy to get the food chain to cycle.
ALGEA
primary consumer
a plant
Plankton
5 example of a 4 linked food chain
if one link breaks the one that eats that link has to find more food