Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population?

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

The body of water found at number 4 on the map above is the