Answer the following question given this paragraph: Most sedimentary rocks form from sediments. Sediments are small pieces of other rocks, like pebbles, sand, silt, and clay. Sedimentary rocks may include fossils. Fossils are materials left behind by once-living organisms. Fossils can be pieces of the organism, like bones. They can also be traces of the organism, like footprints. Q: What is the term for something left behind by once-living organisms? Choices: - decay - waste matter - deposits - fossils A:
fossils
(Question)
Answer the following question given this paragraph: Figure 12.6 Somatic, Autonomic, and Enteric Structures of the Nervous System Somatic structures include the spinal nerves, both motor and sensory fibers, as well as the sensory ganglia (posterior root ganglia and cranial nerve ganglia). Autonomic structures are found in the nerves also, but include the sympathetic and parasympathetic ganglia. The enteric nervous system includes the nervous tissue within the organs of the digestive tract. Q: Somatic, autonomic, and enteric structures are part of what system? Choices: - circulatory system - circulatory system - adrenal system - nervous system A:
(Answer)
nervous system
Ques: Answer the following question given this paragraph: Metallic solids are composed entirely of metallic atoms. In other solid structures, the electrons involved in bonding tend to be localized, or fixed in place in the covalent bonds. However, the electrons in metallic bonds are delocalized over the entire crystal. The fact that the electrons are free to move between different atoms causes metallic solids to be very good conductors of electricity. Q: Metallic solids are composed entirely of which atoms? Choices: - metals - organic - toxic - metallic A:
Ans: metallic
(Q).
Answer the following question given this paragraph: In endothermic reactions, the temperature of the products is typically lower than the temperature of the reactants. The drop in temperature may be great enough to cause liquids to freeze. That's what happens in the endothermic reaction at this URL: http://www. bbc. co. uk/schools/gcsebitesize/science/add_aqa_pre_2011/chemreac/energychangesrev1. shtml . Q: The temperature of the products is typically lower than the temperature of the reactants in what type of reaction? Choices: - autotrophic - exothermic - parabolic - endothermic A:
(A).
endothermic
Ques:Answer the following question given this paragraph: The canister on the left contains a gas at a certain pressure. The attached air pump is then used to double the amount of gas in the canister. Since the canister cannot expand, the increased number of air molecules will strike the inside walls of the canister twice as frequently as they did before. The result is that the pressure inside the canister doubles. As you might imagine, if more and more air is continually added to a rigid container, it may eventually burst. Reducing the number of molecules in a rigid container has the opposite effect and the pressure decreases. Q: Reducing the number of molecules in a rigid container causes what to decrease? Choices: - velocity - demand - energy - pressure A:

Ans:pressure
Answer the following question given this paragraph: Some lipids contain the element phosphorus as well as carbon, hydrogen, and oxygen. These lipids are called phospholipids. Two layers of phospholipid molecules make up the cell membranes of living things. In the Figure below , you can see how phospholipid molecules are arranged in a cell membrane. Q: What type of lipids contain the element phosphorus, carbon, hydrogen and oxygen? Choices: - filaments - eukaryotes - alleles - phospholipids A:
phospholipids