A. Both strands of the DNA molecule act as templates
True an increase in birth rate will tend to cause the population
Energy declines as one climbs up the food chain because energy is wasted as metabolic heat when animals from one trophic level are devoured by species from the next. This causes the presence of only a few organisms at the top level of energy pyramid.
<h3>What is ecological pyramid?</h3>
A graphical representation of the biomass at each trophic level in the given environment is known as an ecological pyramid.
Energy declines as one climbs up the food chain because energy is wasted as metabolic heat when animals from one trophic level are devoured by species from the next.
Thus, this causes the presence of only a few organisms at the top level of energy pyramid.
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A tree is not an isolated system. It gets nutrients from surrounding environment to grow and build its mass. A total mass of tree plus its environment is constant.
