Which of the following is true concerning continental crust?
a.

it does not contain radioactive elements.
b.

it mostly contains heavier and denser minerals than the mantle.
c.

it efficiently transfers heat from the mantle to the surface.
d.

none of the above

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Explain why ecosystem diversity results in species diversity in a healthy biosphere