Q: Loss of energy is the reason that what typically has few levels? Read this paragraph and choose the correct option from the provided answers: At each level of a food chain, a lot of energy is lost. Only about ten 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. Choices: - humans - the atmosphere - video games - food chain A:
food chain

Q: Particles of matter have the most definite shape in what material state? Read this paragraph and choose the correct option from the provided answers: Choices: - plasma - liquid - gas - solid A:
solid

Q: Q: A weak and temporary dipole that influences nearby atoms through electrostatic attraction and repulsion is known as what? Read this paragraph and choose the correct option from the provided answers: The electron cloud of a helium atom contains two electrons, which can normally be expected to be equally distributed spatially around the nucleus. However, at any given moment the electron distribution may be uneven, resulting in an instantaneous dipole. This weak and temporary dipole subsequently influences neighboring helium atoms through electrostatic attraction and repulsion. It induces a dipole on nearby helium atoms (see Figure below ). Choices: - a fused dipole - an incomplete dipole - an debased dipole - an instantaneous dipole A:
A: an instantaneous dipole

Question: Q: What are external skeletons known as? Read this paragraph and choose the correct option from the provided answers: By the beginning of the Paleozoic, organisms had developed shells. Shells could hold their soft tissues together. They could protect the organisms from predators and from drying out. Some organisms evolved external skeletons, called exoskeletons. Organisms with hard parts also make good fossils. Fossils from the Cambrian are much more abundant than fossils from the Precambrian. Choices: - tentacles - exoskins - scales - exoskeletons A:
Answer: exoskeletons

*Question*
Q: What do you call pure substances with unique properties? Read this paragraph and choose the correct option from the provided answers: Elements are pure substances with unique properties. There are more than 100 different elements (92 of which occur naturally). The smallest particles of elements are atoms. Choices: - structures - arrangements - originals - elements A:
**Answer**
elements

Q: Q: Goldfish, tuna, salmon, perch, and cod are examples of which group of fish? Read this paragraph and choose the correct option from the provided answers: Ray-finned fish include the majority of living fish species. including goldfish, tuna, salmon, perch, and cod. They have a bony endoskeleton and a swim bladder. Their thin fins consist of webs of skin over flexible bony rays, or spines. The fins lack muscle, so their movements are controlled by muscles in the body wall. You can compare their ray fins with the fleshy fins of lobe-finned fish in Figure below . Choices: - spiny-lobed fish - cartilaginous fish - bony fish - ray-finned fish A:
A: ray-finned fish