<span>1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.</span>
Answer:
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Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
Explanation:
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Stem cells in embryos generate all other tissues in the body. Opponents say the use of embryonic stem cells would encourage abortions.
Answer:
Cool water at the surface traps nutrients deep in the lake to provide food during the winter.
Explanation:
During winter, <u>ice forms on the surface of the lake</u> when the temperature drops below 4 degrees Celsius. However, the <u>water below remains warm</u> because the ice layer on top also acts as insulation of heat transfer in case of further temperature drops. Further, ice formation <u>retains/seals off</u> nutrients and gases flow below the ice sheet. The amount of nutrients is sufficient for phytoplankton activity during light hours (there is no complete darkness even after thick ice sheet is formed). Resultantly, the <u>photosynthesis</u> produces <u>oxygen and food</u> for aquatic organsism within the lake environment and support their <u>survival during winter season</u>.
Humid continental climate<span>, </span><span>major </span>climate<span> type of the </span>Köppen classification<span> that exhibits large seasonal </span>temperature<span> contrasts with hot summers and cold winters. It is found between 30° and 60° N in central and eastern </span>North America<span> and </span>Asia<span> in the major zone of conflict between polar and tropical </span>air masses<span>. Along with the </span>continental subarctic climate<span>, the humid continental climate is a primarily Northern Hemispheric phenomena, since landmasses are absent at the significant latitudes in the Southern Hemisphere.</span>
Answer;
Chemical bonds.
Chemical bonds are broken and reformed to release energy from food molecules.
Explanation;
Breaking of chemical bonds does not release energy to the environment, but energy is released when the chemical bonds are formed. Chemical reactions involves breaking the original chemical bonds ad formation of new chemical bonds. These are two steps that causes the release energy from food molecules.
