Answer the following question given this paragraph: Trailing zeros, which are zeros at the end of a number, are significant only if the number has a decimal point. Thus, in 1,500, the two trailing zeros are not. Q: The zeros at the end of a number are known as what? Choices: - rest zeros - edge zeros - remaining zeros - trailing zeros A:
trailing zeros
Answer the following question given this paragraph: plants. Saturated triglycerides are those containing a higher proportion of saturated fatty acid chains (fewer carbon-to-carbon double bonds); unsaturated triglyceridescontain a higher proportion of unsaturated fatty acid chains. Saponification is the hydrolysis of a triglyceride in a basic solution to form glycerol and three carboxylate anions or soap molecules. Other important reactions are the hydrogenation and oxidation of double bonds in unsaturated fats and oils. Phospholipids are lipids containing phosphorus. In phosphoglycerides, the phosphorus is joined to an amino alcohol unit. Some phosphoglycerides, like lecithins, are used to stabilize an emulsiona dispersion of two liquids that do not normally mix, such as oil and water. Sphingolipids are lipids for which the precursor is the amino alcohol sphingosine, rather than glycerol. A glycolipidhas a sugar substituted at one of the OH groups of either glycerol or sphingosine. All are highly polar lipids found in cell membranes. Polar lipids have dual characteristics: one part of the molecule is ionic and dissolves in water; the rest has a hydrocarbon structure and dissolves in nonpolar substances. Often, the ionic part is referred to as hydrophilic (literally, "water loving") and the nonpolar part as hydrophobic ("water fearing"). When placed in water, polar lipids disperse into any one of three arrangements: micelles,monolayers, and bilayers. Micelles are aggregations of molecules in which the hydrocarbon tails of the lipids, being hydrophobic, are directed inward (away from the surrounding water), and the hydrophilic heads that are directed outward into the water. Bilayers are double layers arranged so that the hydrophobic tails are sandwiched between the two layers of hydrophilic heads, which remain in contact with the water. Every living cell is enclosed by a cell membrane composed of a lipid bilayer. In animal cells, the bilayer consists mainly of phospholipids, glycolipids, and the steroid cholesterol. Embedded in the bilayer are integral... Q: What are the lipids containing phosphorus? Choices: - eukaryotes - hemoglobin - alkaloids - phospholipids A:
phospholipids
Q: Answer the following question given this paragraph: Coevolution often happens in species that have symbiotic relationships. Examples include flowering plants and their pollinators. Q: What type of evolution often happens in species that have symbiotic relationships? Choices: - retrogression - succession - spontaneous evolution - coevolution A:
A: coevolution
Question: Answer the following question given this paragraph: Collision theory explains how materials can collide and become new materials. Q: Which theory explains how materials can collide and become new materials? Choices: - pileup theory - disturbance theory - rupture theory - collision theory A:
Answer: collision theory
*Question*
Answer the following question given this paragraph: All chemical reactions require activation energy, which is the energy needed to get a reaction started. Q: What type of energy is required in all chemical reactions? Choices: - conduction - function - solar - activation A:
**Answer**
activation
Answer the following question given this paragraph: When physical or chemical changes occur, they are generally accompanied by a transfer of energy. The law of conservation of energy states that in any physical or chemical process, energy is neither created nor destroyed. In other words, the entire energy in the universe is conserved. In order to better understand the energy changes taking place during a reaction, we need to define two parts of the universe, called the system and the surroundings. The system is the specific portion of matter in a given space that is being studied during an experiment or an observation. The surroundings is everything in the universe that is not part of the system. In practical terms for a laboratory chemist, the system is the particular chemicals being reacted, while the surroundings is the immediate vicinity within the room. During most processes, energy is exchanged between the system and the surroundings. If the system loses a certain amount of energy, that same amount of energy is gained by the surroundings. If the system gains a certain amount of energy, that energy is supplied by the surroundings. Q: Physical or chemical changes are generally accompanied by a transfer of what? Choices: - shape - pressure - color - energy A:
energy