hydrozoans

"Before the picnic, we were snorkeling in the clear, shallow water. "

"In the aquarium, the hydras, tiny, tube-shaped creatures with tentacles, clung to the glass and waited to catch small food particles floating by. "

"I will purchase the vacation package if you will include car rental."

"Variety is the spice of life."

"In biology class, we learned that the term "coelenterates," once used to group jellyfish and sea anemones together, is now outdated because these animals are classified into separate phyla, Cnidaria and Ctenophora. "

"The parrot's feathers were colorful, with shades of green, blue, and yellow. "

"The ship ran aground in an unexpected shallow."

"During the marine biology field trip, the students learned that hydrozoa like the Portuguese man-of-war, exhibit both sexual and asexual reproduction as part of their complex life cycles. "

"An officer is attached to a certain regiment, company, or ship."

"The colonial teacher spoke about the history of her country's past relationship with the neighboring nation. "

"The marine biologist pointed out the delicate, branching structures of the hydroids attached to the pier, explaining that they were colonies of tiny, individual animals. "

"The aquarium displayed a beautiful siphonophore, a colony of tiny, transparent polyps drifting in the water. "