Answer:
A chemical bond occurs as a result of electrostatic interaction between the nuclei and the electrons of the joining atoms. ... Simultaneously, a repulsion arises between the two positively charged nuclei and the same occurs with the electrons of the two negatively charged atoms.
Explanation:
p o n l o e n e l t r a d u c t o r
Plates slid past each other
Answer:
B. A small fraction of the energy is transferred to higher trophic levels, majority stays in the lower trophic levels
Explanation:
Energy transfer between trophic levels is insufficient. When an organism is eaten by another organism, not all of the biomass of prey forms the biomass of the predator. Majority of the energy is released into environment during cellular respiration. Some of the matter also remains undigested and is not used by the predator. Thus, only 10% of energy available at one level is transferred to the next level. So when we keep on moving up in a food chain, energy available keeps on decreasing.
Select the correct statement about lymph transport.
Lymph transport is faster than that occurring in veins.
Under normal conditions, lymph vessels are very high-pressure conduits.
Lymph transport is only necessary when illness causes tissue swelling.
Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.
Answer:
Mantle is composed of rocks where as core is composed of metals.
Explanation:
Mantle and core both are part of the earth's crust. Though there have a difference between them- The mantle is consists of semi solidified rocks and core is consists of hot metals like iron and nickel. Core is the inner most layer surrounding the earth's center. The portion of the interior beyond the crust is called mantle. The core is the densest layer of the earth with its density ranges from 9.5-14.5 g/cm^3 where the density of mantle varies between 2.9-3.3 g/cm^3.
