Q: About how full is the outer energy level in metalloids? Read this paragraph and choose the correct option from the provided answers: Metalloids such as boron have an outer energy level that is about half full. These elements need to gain or lose too many electrons for a full outer energy level to come about easily. As a result, these elements are not very reactive. They may be able to conduct electricity but not very well. Choices: - nearly empty - three-fourth full - a quarter full - half full A:
half full

Q: When hit from behind in a car crash, a passenger can suffer a neck injury called what? Read this paragraph and choose the correct option from the provided answers: When hit from behind in a car crash, a passenger can suffer a neck injury called whiplash . Explain in terms of inertia how this occurs, and how headrests can prevent the injury. Choices: - inflammation - necklash - twisted neck - whiplash A:
whiplash

Q: Q: What is the main function of the cardiovascular system? Read this paragraph and choose the correct option from the provided answers: Many ecosystems have changed because of human actions. The human species is responsible for a range of environmental problems. Choices: - implanatation - digestion - respiration - to transport A:
A: to transport

Question: Q: At high pressures, how are the molecules of a gas crowded? Read this paragraph and choose the correct option from the provided answers: Particles of a hypothetical ideal gas have no significant volume and do not attract or repel each other. In general, real gases approximate this behavior at relatively low pressures and high temperatures. However, at high pressures, the molecules of a gas are crowded closer together, and the amount of empty space between the molecules is reduced. At these higher pressures, the volume of the gas molecules themselves becomes appreciable relative to the total volume occupied by the gas (Figure 9.36). The gas therefore becomes less compressible at these high pressures, and although its volume continues to decrease with increasing pressure, this decrease is not proportional as predicted by Boyle's law. Choices: - few together - further apart - small together - closer together A:
Answer: closer together

*Question*
Q: What is the particular sequence of amino acids in a longer chain called? Read this paragraph and choose the correct option from the provided answers: The dipeptide has a free amino group on one end of the molecule and a free carboxyl group on the other end. Each is capable of extending the chain through the formation of another peptide bond. The particular sequence of amino acids in a longer chain is called an amino acid sequence. By convention, the amino acid sequence is listed in the order such that the free amino group is on the left end of the molecule and the free carboxyl group is on the right end of the molecule. For example, suppose that a sequence of the amino acids glycine, tryptophan, and alanine is formed with the free amino group as part of the glycine and the free carboxyl group as part of the alanine. The amino acid sequence can be easily written using the abbreviations as Gly-Trp-Ala. This is a different sequence from Ala-Trp-Gly because the free amino and carboxyl groups would be on different amino acids in that case. Choices: - atomic sequence - molecular sequence - carbon sequence - amino acid sequence A:
**Answer**
amino acid sequence

Q: Q: What do jellyfish lack in their nervous system? Read this paragraph and choose the correct option from the provided answers: Nervous systems throughout the animal kingdom vary in structure and complexity, as illustrated by the variety of animals shown in Figure 35.2. Some organisms, like sea sponges, lack a true nervous system. Others, like jellyfish, lack a true brain and instead have a system of separate but connected nerve cells (neurons) called a "nerve net. " Echinoderms such as sea stars have nerve cells that are bundled into fibers called nerves. Flatworms of the phylum Platyhelminthes have both a central nervous system (CNS), made up of a small "brain" and two nerve cords, and a peripheral nervous system (PNS) containing a system of nerves that extend throughout the body. The insect nervous system is more complex but also fairly decentralized. It contains a brain, ventral nerve cord, and ganglia (clusters of connected neurons). These ganglia can control movements and behaviors without input from the brain. Octopi may have the most complicated of invertebrate nervous systemsthey have neurons that are organized in specialized lobes and eyes that are structurally similar to vertebrate species. Choices: - stimulus - Response - Cortex - true brain A:
A: true brain