To be considered valid, the results of a scientific experiment must mathematically verified simple written in a scientific journal repeatable

The transport tubes for food coming down the plants are called?

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)

Write a paragraph explaining how energy flows through an ecosystem using the following terms: energy pyramid, trophic level, producer, primary consumer, decomposer, sun, secondary consumer, and tertiary consumer. .