Which two organisms are able to form a symbiotic relationship with each other A.
mussels and giant clams
B.
Chemosynthetic bacteria and tube worms
C.
tube worms and giant clams
D.
mussels and tube worms

 i think is D

Explanation:

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

human-caused climate hope this