What kind of cell contains dna and a nucleus?

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field