Nuclear pores allow to exit the nucleus.
a. rna
b. dna
c. nucleoli
d. nuclear envelopes

i think the answer is b.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.