HELP PLEASE During DNA replication, several natural proofreading mechanisms are in place to prevent an error from occurring. However, errors can occur occasionally. If the error is not fixed, it becomes a genetic mutation.

How can a mutation affect protein synthesis by a cell? Do you think there are different consequences if it happens in a gamete cell (sperm or egg) versus a non-gamete cell?

Which potential solution below best addresses the issue of loss of biodiversity in a north american ecosystem?

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important