Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish that often become infected. This relationship is best described as

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.

What do well call it when two or more genes determine an organisms trait? a.polygenic b.controlled by one gene c.mutated

(05.01 mc) west indian manatees are large aquatic mammals that live in rivers and near shore estuaries, especially in florida. they have two flexible front flippers with three or four toenails, similar to elephant toenails. though they lack hind limbs, manatees have vestigial pelvic bones, as shown in the diagram. manatee and elephant skeletons are shown side-by-side. the manatee, an aquatic animal, has a skeleton that has two large front limbs and two very tiny hind limb bones that do not form actual limbs. the elephant has four large limbs. which of the following answer choices best describes how evidence of the manatee toenails and pelvic bones supports the scientific theory of evolution of these animals? (1 point)