Answer:
A double helix shape of DNA
Explanation:
A unicellular protist is a eukaryotic cell because it has a nucleus enclosed by a membrane. Protist cannont be grouped with plants, animals or fungi. However they are still eukaryotic.
Answer:
The process of reuptake occurs when the sending neuron normally reabsorbs excess neurotransmitter molecules.
Explanation:
The process of reuptake takes place when a cell that initially produced and emitted a particular substance reabsorbs it again. Serotonin is one of the secretions affected by this process since it can be reabsorbed if it sticks to receptors located in the original nerve where it was produced to be then released once again.