Question: Answer the following question given this paragraph: The skin consists of two distinct layers, an outer layer called the epidermis and an inner layer called the dermis. The epidermis is constantly being renewed as dead cells on the surface are shed. This layer contains melanin-producing melanocytes. The dermis contains blood vessels, nerve endings, hair follicles, and sebaceous and sweat glands. Q: Shedding of dead cells ensures constant renewal of what outer layer of the skin? Choices: - scale - cuticle - dermis - epidermis A:
Answer: epidermis

Question: Answer the following question given this paragraph: A lever is a simple machine that consists of a bar that rotates around a fixed point called the fulcrum. There are three classes of levers. Depending on its class, a lever may have an ideal mechanical advantage that is less than, equal to, or greater than 1. First-class levers also change the direction of the input force. Q: What simple machine consists of a bar that rotates around a fixed point called the fulcrum? Choices: - battering ram - rotor - catapult - lever A:
Answer: lever

Question: Answer the following question given this paragraph: Mollusks live in most terrestrial, freshwater, and marine habitats. However, the majority of species live in the ocean. They can be found in both shallow and deep water and from tropical to polar latitudes. They have a variety of ways of getting food. Some are free-living heterotrophs. Others are internal parasites. Mollusks are also eaten by many other organisms, including humans. Q: Where do the majority of species live? Choices: - air - trees - land - ocean A:
Answer:
ocean