Radiometric dating vs radioactive dating

A pattern of development, such as that of a mammal, in which the early blastomeres retain the potential to form the entire animal.

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A type of nucleic acid consisting of nucleotide monomers with a ribose sugar and the nitrogenous bases adenine (A), cytosine (C), guanine (G), and uracil (U); usually single-stranded; functions in protein synthesis and as the genome of some viruses. A cell organelle constructed in the nucleolus, functioning as the site of protein synthesis in the cytoplasm.

Consists of r RNA and protein molecules, which make up two subunits.

A type of embryonic development in deuterostomes in which the planes of cell division that transform the zygote into a ball of cells are either parallel or perpendicular to the polar axis, thereby aligning tiers of cells one above the other.

A method of determining the age of fossils and rocks using half-lives of radioactive isotopes.

The vertebrate class of reptiles, represented by lizards, snakes, turtles, and crocodilians.

A measure of the clarity of an image; the minimum distance that two points can be separated and still be distinguished as two separate points.

Neuron that transmits signals between different regions of the central nervous system.

A signal stimulus that functions as a communication signal between individuals of the same species.

The intensity of the receptor potential determines the frequency of action potentials traveling to the nervous system.

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