Answer quick

which of the following is a principle of natural selection

most organisms are infertile or produce nonviable offspring.

members of a species are genetically identical.

variations are acquired during an individual's lifetime and so are not passed to offspring.

variations allow individuals to survive and reproduce better than members who lack these variations.

1. what are some of the challenges in determining the time of death using insects? type your response here in paragraph form (at least 5-7 sentences):

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis