The correct answer is (b.) euglenophytes. Phosphorescence is a phenomenon associated with an algal division called euglenophytes. Euglenoids are one of the most known flagellates which are excavated eukaryotes of the phylum euglenophyte. Euglenophytes are single-celled plant-like protists that have no cell wall.
Answer: nervous system
Explanation:
The nerves send impulses either from the brain or spinal chord for the body organs to coordinate
Because of the increase in hydrostatic pressure
A) single loop
Fish have a two-chambered heart in which a single-loop circulatory pattern takes blood from the heart to the gills and then to the body.
