DNA is made up of Nitrogenous base pairs. The bases bond in which of the following patterns? A.) Adenine – Thymine; Cytosine – Guanine
B.) Adenine – Cytosine; Guanine – Thymine

Study the image of this rock.which characteristic best supports its formation from sedimentary processes? it has many layers.it is coarse-grained.its grain shape is round.its texture is non-banded.

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?