Answer:
Chemical bonds contain potential energy.
Explanation:
Chemical bonds always contain potential energy. The atoms of the bond want to move to a lower energy to become more stable.. The energy for breaking bonds only comes when stronger bonds are formed. This energy is used to tear apart the bonds holding the Hydrogen atoms together. The strength of the covalent bonds depend on the overlap between the valence orbitals of the bonded Atom.
Answer:
c. none of the subjects to show signs and symptoms of a cholesterol deficiency during the entire study.
Explanation:
this is because the blood cholesterol is from two sources. Nearly 80% of the cholesterol the body needs are made by the liver and intestine.certain small amounts are also produced in the adrenal glands and the reproductive organs.The remaining fragment amounts comes from the diets.
Therefore even if these subjects were fed with diet without cholesterol, it will not have any significant effects on the body cholesterol composition. Therefore no symptoms of its deficiency will be observed.
Generally it biosynthesis is regulated by the amount of cholesterol present in the blood.
Answer:
hydrosphere
Explanation:
definition: the hydrosphere is the sum of earth's water, in the ocean, the ground, on the surface, and in the air.
Answer;
DNA or protein sequences of shared genes
The MOST accurate way to determine the evolutionary relationship between two animals is through the examination of DNA or protein sequences of shared genes.
Explanation;
DNA or protein sequences of shared genes. Biochemical evidence is extremely accurate in determining the relationship between two organisms. Many animals have been re-classified, due to DNA evidence.
Answer:
Top predators at the highest trophic levels eat lower-level predators and herbivores
Explanation:
A trophic level is defined as one group of organisms in the ecosystem occupying the same level in the food chain, which is composed of different levels (primary, secondary and higher levels). Top predators at the higher levels maintain the trophic balance by eating other species that eat on primary producers/consumers, thereby favoring the homeostasis of the ecosystem.
