The latent stage of syphilis, which may last for years, can occur between
the secondary and tertiary stages.
the primary and secondary stages.
initial infection and the primary stage.
any of the three stages.

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

What must be true for natural selection to heppen

How does natural selection change thephenotypes within a population over time?