Chapter 24 Online Study Guide

TED stands for Turtle Excluder Device. It is a device that is introduced to shrimp trawlers to help reduce the drowning of sea turtles. The TED is designed to allow shrimp to enter the trawl net while excluding larger sea turtles. This device has a grid that allows small shrimp to pass through, but larger animals, such as sea turtles, are directed towards an escape hatch. By using TEDs, shrimp trawlers can minimize the accidental capture and drowning of sea turtles, thus helping to protect these endangered species.

The correct answer is "quagga." The passage states that besides the zebra mussel, another larger type of mussel has invaded the great lakes. The options provided are "phatmucket," "lion," "quagga," and "tiger." Among these options, only "quagga" is a type of mussel. Therefore, "quagga" is the culprit responsible for invading the great lakes along with the zebra mussel.

Whale meat can sell for 90$ per lb at Japanese markets.

The given answer, "Chemicals for blood agglutination," is not an example of a pharmaceutical from marine organisms. Blood agglutination refers to the clumping of red blood cells, and it is not a pharmaceutical product derived from marine organisms. The other options, such as bone reconstruction material from coral, a binding adhesive for tooth fillings from barnacles, and chemicals with antibiotic and anticancer properties from various marine organisms, are examples of pharmaceuticals derived from marine organisms.

The engineering built ladders to allow fish to bypass dams during their upstream migration. These ladders are designed to provide a series of steps or pools that allow the fish to swim upstream and pass over the dam. The ladders are typically constructed with a gentle slope and flow of water to assist the fish in their journey. This solution helps to mitigate the impact of dams on fish populations and allows them to continue their natural migration patterns.

The correct answer is 20%. This means that out of the remaining Everglades, 20% of it is located within the Everglades National Park. This indicates that a significant portion of the Everglades is protected and preserved within the boundaries of the national park, highlighting its importance in conserving this unique ecosystem.

The given answer states that the highest marine biodiversity is found in the midwaters of the open ocean. This contradicts the general pattern of marine biodiversity, which states that the greatest marine biodiversity occurs in coral reefs and on the deep-sea floor. Therefore, the given answer is not one of the general patterns of marine biodiversity.

Bilharzia, also known as schistosomiasis, is a parasite mentioned in the first page on Lake Victoria. It attacks the liver, lungs, and eyes of the endemic cichlids (fish).

The whale shark is not a cetacean because it belongs to the family Rhincodontidae, which is a type of shark. Cetaceans are a group of marine mammals that include dolphins, whales, and porpoises. The common dolphin, pygmy sperm whale, and blue whale are all examples of cetaceans.