Ecologists discovered that were dying trout in a stream that ran through some farmland where nitrogen fertilizer was used on the crops. how might you explained what happened?

Which of the following organelles is found in both plant and animal cells? a. cell wall b. chloroplast c. central vacuole d. mitochondrium

Which of the following releases high-speed electrons while transforming a neutron into a proton? Alpha decay Beta decay Electron capture Gamma emission

What makes enzymes specific for their substrates

Energy in an ecosystem flow from consumers to producers. True or False

Which of the following is true? A. Wolves and dogs are currently viewed as the same species. B. It is unknown as to whether dogs evolved from wolves or wolves evolved from dogs. C. Wolves evolved from dogs. D. Dogs evolved from wolves.

In a pond, algae has 10,000 kcal of available energy. If the zooplankton which consumes the algae has 1,000 kcal of available energy, what is the available energy to the minnows that consume the zooplankton?

Why are the symptoms of vascular neurocognitive disorder so different in each patient?

A mutation in a dna molecule is passed to offspring only when the mutation occurs in a

If an organism used glycolysis (Embden-Meyerhof-Parnas pathway) but were unable to use fermentation or an electron transport chain, what problem would develop?

An elements oxidation number is the number of ___ it will gain or lose in a chemical reaction a - electrons b - nucleons c - neutrons d - protons