The answer i believe is “c”
A panther because it eats the primary consumer which would be the deer.
an oak tree is the producer (bottom of the food chain)
the deer is the primary consumer because it eats grass which would also be a producer
and the hawk would be the top predator because it eats a snake which would eat a mouse which would feed on a producer :)
Secondary consumer is the answer.
Well, cray fish are omnivorous which means they eat animals too. Secondary consumers eat animals.
Cray fish are secondary consumers.
The electrical property of the membrane changes. There is a small undershoot in the membrane potential.
