Use figure 2 to answer this question The model shown in figure two can best be used to explain to answer to which question
A. what happens when an activator protein binds to the working enhancer in a strand of DNA
B. When a coding region of a gene becomes inactive is the deactivation of the enhance of proteins the only cause
C. Why did some individuals develop the Mutation of the disrupts a working enchaner
D. when working a enhancer binds to a gene does it aect the amount of protein that can be produced

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

Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter