Both euglena (eukaryote) and cyanobacteria (a prokaryote) are photosynthetic unicellular organisms found in pond water. the feature that would distinguish euglena from cyanobacteria is the

Euglena is a eukaryotic organism which contains chloroplast for the photosynthesis.

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

we would need to see the picture to answer it