Answer the following question given this paragraph: At each level of a food chain, a lot of energy is lost. Only about 10 percent of the energy passes to the next level. Where does that energy go? Some energy is given off as heat. Some energy goes into animal wastes. Energy also goes into growing things that another consumer can't eat, like fur. It's because so much energy is lost that most food chains have just a few levels. There's not enough energy left for higher levels. Q: In a food chain, only about 10 percent of what passes to the next level? Choices: - mineral - vitamins - hydrogen - energy A:
energy
Answer the following question given this paragraph: Most plant cells have a large central vacuole . It can make up as much as 90 percent of a plant cell's total volume. The central vacuole is like a large storage container. It may store substances such as water, enzymes, and salts. It may have other roles as well. For example, the central vacuole helps stems and leaves hold their shape. It may also contain pigments that give flowers their colors. Q: Most plant cells have a large central what? Choices: - nuclei - loci - membranes - vacuole A:
vacuole
Q: Answer the following question given this paragraph: Q: What component of a prokaryote is unique in molecular composition and mechanism of propulsion? Choices: - the sporangia - the membrane - the amoeba - the flagella A:
A: the flagella
Question: Answer the following question given this paragraph: The epidermis is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface. Although the top layer of epidermis is only about as thick as a sheet of paper, it is made up of 25 to 30 layers of cells. The epidermis also contains cells that produce melanin. Melanin is the brownish pigment that gives skin and hair their color. Melanin-producing cells are found in the bottom layer of the epidermis. The epidermis does not have any blood vessels. The lower part of the epidermis receives blood by diffusion from blood vessels of the dermis. Q: What is the outermost layer of the skin? Choices: - dermis - nexus - callus - epidermis A:
Answer: epidermis
*Question*
Answer the following question given this paragraph: Evolution can be described as a change in species over time . Dinosaur fossils are significant evidence of evolution and of past life on Earth. Q: What term refers to a change in species over time? Choices: - spontaneous change - generation - mutation - evolution A:
**Answer**
evolution
(Question)
Answer the following question given this paragraph: Q: Are ecotones wide or narrow? Choices: - wide - somewhere in between - narrow - can be both A:
(Answer)
can be both