Answer the following question given this paragraph: Valence electrons of both atoms are always involved when those two atoms come together to form a chemical bond. Chemical bonds are the basis for how elements combine with one another to form compounds. When these chemical bonds form, atoms of some elements have a greater ability to attract the valence electrons involved in the bond than other elements. Electronegativity is a measure of the ability of an atom to attract shared electrons when the atom is part of a compound. Electronegativity differs from electron affinity because electron affinity is a measure of the actual energy released when an atom gains an electron. In contrast, electronegativity is a relative scale, so it is not measured in units of energy. All elements are compared to one another, and the most electronegative element, fluorine, is assigned an electronegativity value of 3.98. Fluorine attracts shared electrons better than any other element. Figure below shows the electronegativity values of most elements. Q: What does fluorine attract better than any other element? Choices: - ionic bonds - electron shells - magnets - shared electrons A:
shared electrons
Answer the following question given this paragraph: The frequency , , is the number of cycles an object goes through in 1 second. Frequency is measured in Hertz (Hz). 1 Hz = 1 cycle per sec. Q: What is the base unit that frequency is typically measured in? Choices: - watt - volume - degrees - hertz A:
hertz
Q: Answer the following question given this paragraph: Harmful mutations can result in errors in protein sequence, creating partially or completely non-functional proteins. Q: Harmful instances of what can result in errors in protein sequence that yield non-functional proteins? Choices: - infection - bioaccumulation - radiation - mutation A:
A: mutation
Question: Answer the following question given this paragraph: Lizards and snakes belong to the largest order of reptiles, Squamata. Lizards are a large group of reptiles, with nearly 5,000 species, living on every continent except Antarctica. Some places are just too cold for lizards. Q: Squamata is the largest order of what broad animal group, and includes lizards and snakes? Choices: - amphibians - spiny fishes - mammals - reptiles A:
Answer: reptiles
*Question*
Answer the following question given this paragraph: African Giraffes. Giraffes feed on leaves high in trees. Their long necks allow them to reach leaves that other ground animals cannot. Q: What allows giraffes to reach leaves that other ground animals cannot? Choices: - camouflage pattern - long tongue - long horns - long necks A:
**Answer**
long necks
Answer the following question given this paragraph: Saturated fatty acids have only single bonds between carbon atoms. As a result, the carbon atoms are bonded to as many hydrogen atoms as possible. In other words, the carbon atoms are saturated with hydrogens. Saturated fatty acids are found in fats. Q: Carbon atoms are bonded to as many hydrogen atoms as possible in what type of fatty acids? Choices: - super - unsaturated - oily - saturated A:
saturated