Q: Q: In the human ear, sound waves cause the stapes to press against what? Read this paragraph and choose the correct option from the provided answers: Figure 36.14 In the human ear, sound waves cause the stapes to press against the oval window. Vibrations travel up the fluid-filled interior of the cochlea. The basilar membrane that lines the cochlea gets continuously thinner toward the apex of the cochlea. Different thicknesses of membrane vibrate in response to different frequencies of sound. Sound waves then exit through the round window. In the cross section of the cochlea (top right figure), note that in addition to the upper canal and lower canal, the cochlea also has a middle canal. The organ of Corti (bottom image) is the site of sound transduction. Movement of stereocilia on hair cells results in an action potential that travels along the auditory nerve. Choices: - yellow window - shaped window - Idea Window - oval window A:
A: oval window

Q: Q: Where does the most important monsoon in the world occur? Read this paragraph and choose the correct option from the provided answers: Monsoons are like land and sea breezes, but on a larger scale. They occur because of seasonal changes in the temperature of land and water. In the winter, they blow from land to water. In the summer, they blow from water to land. In regions that experience monsoons, the seawater offshore is extremely warm. The hot air absorbs a lot of the moisture and carries it over the land. Summer monsoons bring heavy rains on land. Monsoons occur in several places around the globe. The most important monsoon in the world is in southern Asia ( Figure below ). These monsoons are important because they carry water to the many people who live there. Choices: - the atlantic ocean - eastern aisa - northern africa - southern asia A:
A: southern asia

Q: Q: All animals that derive energy from food are classified as what? Read this paragraph and choose the correct option from the provided answers: Figure 15.2 All animals that derive energy from food are heterotrophs. The (a) black bear is an omnivore, eating both plants and animals. The (b) heartworm Dirofilaria immitis is a parasite that derives energy from its hosts. It spends its larval stage in mosquitos and its adult stage infesting the hearts of dogs and other mammals, as shown here. (credit a: modification of work by USDA Forest Service; credit b: modification of work by Clyde Robinson). Choices: - lifeforms - paleotrophs - heliotrophs - heterotrophs A:
A: heterotrophs

Q: Q: A change in temperature with distance is called a what? Read this paragraph and choose the correct option from the provided answers: Air temperature changes with altitude. This does not occur in the same way as pressure and density, which decrease with altitude. Changes in air temperature are not regular. A change in temperature with distance is called a temperature gradient . Choices: - oxygen gradient - speed gradient - solution gradient - temperature gradient A:
A: temperature gradient