In the following diagram of the energy flow in an ecosystem, what does symbol 1 represent? Heat
Heat
1
Producers
2
Inorganic
Nutrients
Decomposers
Heat
OA. heat
OB. sunlight
OC.
consumers
n

Which of the following is not a defining characteristic of plants?

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.

Kidney stones are tiny crystals of calcium or magnesium that block the narrow sections of the excretory system. which symptoms would a person with kidney stones experience? a. inability to store urine; pain in the bladder b. inability to store urine; pain in the urethra c. reduced urine flow; pain in the bladder d. reduced urine flow; pain in the urethra