An ultrasound tech is trying to identify an object, but the screen of the machine is broken. which statement best describes this situation?

the generated sound wave will not be able to reflect off of the object.

the sound wave will not be generated, so there will be no echoes received.

the echoes will be made but will not be able to be received by the machine.

the machine will not be able to process the received echoes into images.

Liquid water turns into water vapor at which step in the water cycle? a. precipitation o b. water run off c. evaporation d. condensation

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.