Answer the following question given this paragraph: In the 1920s, physicists discovered that electrons do not travel in fixed paths. In fact, they found that electrons only have a certain chance of being in any particular place. They could only describe where electrons are with mathematical formulas. That's because electrons have wave-like properties as well as properties of particles of matter. It is the "wave nature" of electrons that lets them exist only at certain distances from the nucleus. The negative electrons are attracted to the positive nucleus. However, because the electrons behave like waves, they bend around the nucleus instead of falling toward it. Electrons exist only where the wave is stable. These are the orbitals. They do not exist where the wave is not stable. These are the places between orbitals. Q: Electrons exist only where the wave is what? Choices: - seen - spinning - solid - stable A:
stable
(Question)
Answer the following question given this paragraph: Most fungi get organic compounds from dead organisms. Fungi use their hyphae to penetrate deep into decaying organic matter. They produce enzymes at the tips of their hyphae. The enzymes digest the organic matter so the fungal cells can absorb it. Fungi are the main decomposers in forests. They are the only decomposers that can break down cellulose and wood. They have special enzymes for this purpose. Q: What do fungi use to penetrate deep into decaying matter? Choices: - cilia - cytoplasm - flagella - hyphae A:
(Answer)
hyphae
Ques: Answer the following question given this paragraph: Q: Integral proteins penetrate the hydrophobic interior of the what? Choices: - metabolism bilayer - skin bilayer - carbon bilayer - lipid bilayer A:
Ans: lipid bilayer
(Q).
Answer the following question given this paragraph: The number of protons in an atom is called its atomic number. This is also unique for each element. Q: The atomic number is the same as the number of what in an atom? Choices: - neutrons - ions - electrons - protons A:
(A).
protons
Ques:Answer the following question given this paragraph: Earthquakes also occur at divergent plate boundaries. At mid-ocean ridges, these earthquakes tend to be small and shallow focus because the plates are thin, young, and hot. Earthquakes in the oceans are usually far from land, so they have little effect on peoples' lives. On land, where continents are rifting apart, earthquakes are larger and stronger. Q: What causes earthquakes at mid-ocean ridges to be small and shallow? Choices: - plates are thin , young , and cold - plates are thick , young , and cold - plates are thick , old , and hot - plates are thin , young , and hot A:

Ans:plates are thin , young , and hot
Question: Answer the following question given this paragraph: Some molecules are not able to satisfy the octet rule by making only single covalent bonds between the atoms. Consider the compound ethene, which has a molecular formula of C 2 H 4 . The carbon atoms are bonded together, with each carbon also being bonded to two hydrogen atoms. Q: The carbon atoms are bonded together, with each carbon also being bonded to two of what kind of atoms? Choices: - calcium - helium - ions - hydrogen A:
Answer:
hydrogen