Which explanation best describes how water droplets form on the outside of a cold glass?

a. Water vapor from the air cools and condenses into water.
b. Ice melts inside the glass to form liquid water.
c. Water inside the glass cools and changes into water vapor.
d. Ice inside the glass condenses to form water.

a

Explanation:

the cold temperature around the glass makes water vapor outside convert to liquid form and settle on the glass

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: