Answer:
sun but am not so sure about it
The answer of the absolute refractory period is 3.5
You never can know the exact value of a physical or chemical dimension because several reasons: all the instruments have a certain sensibility (sensibility is the smallest variation of the dimension that the instrument can measure) that cannot be overcame.
The correct answer is A. some energy is wasted as heat.
Energy is transferred between organisms through the food in a food chin. Food chain begins with producers. They make food using solar energy. They are eaten by primary consumers which are in turn eaten by secondary consumers and so on. Large amounts of energy are lost from the ecosystem when energy is transferred from one organisms to the next. In biologic systems, large amount of energy is lost as metabolic heat when the organisms are consumed by the next level.
A true-breeding plant is one that, when self-fertilized, only produces offspring with the same traits. True-breeding organisms are genetically identical and have identical alleles for specified traits. It is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. Basically true means identical or same. Hope this somewhat helped :)
