Wordly Wise Level 7 Lesson 10 Review

Manatees, seals, dolphins, and whales have something in common. They are all ___________ mammals.

• ponderous

• aquatic

• lethal

• assertive

Manatees are among the largest of marine mammals. These __________ creatures can grow to twelve feet and weigh up to three thousand pounds.

• aquatic

• ponderous

• lethal

• nimble

Manatees present no threat to humans. In fact, these ________ creatures seem to enjoy the company of humans.

• nimble

• aquatic

• docile

• lethal

The number of boats on Florida's coastal waters continues to increase. There is no prospect that the number of boats will _________ in the future.

• plight

• verge

• bleak

• dwindle

Boating is important to Florida's economy. However, the claim that boats and manatees can coexist safely ________ on the ridiculous.

• dwindles

• verges

• monitors

• averts

Collisions are common between boats and manatees. These encounters are often __________ for the manatee.

• lethal

• bleak

• vigilant

• nimble

The harm comes from contact with the boat's propellers. These collisions could be __________ if motor boaters were more careful.

• monitored

• averted

• dwindled

• blithed

A third of all manatee deaths are boat-related. In as many as nine out of ten of those deaths, the manatee was ______ by boat propellers.

• blithed

• mutilated

• averted

• monitored

Manatees feed just below the surface. These slow-moving creatures are not __________ enough to avoid collisions.

• nimble

• bleak

• ponderous

• aquatic

A close watch is kept on the manatee population in Florida. Authorities are __________ about tracking and counting them.

• monitoring

• vigilant

• assertive

• mutilating