The natural process by which species die off is called

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab