Examine the diagram below. The pieces labeled A and T are nitrogenous bases known as adenine and thymine. What kind of macromolecule is this?
A) Nucleic acid. B)protein. C) lipid D) fatty acid

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Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth