What would a scientist predict might happen in a region where there is a high amount of acid rain? a. vegetation and aquatic life damage c. contamination of drinking water b. building and monument erosion d. all of the above

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

In fruit flies, gray bodies (g) are dominant over black bodies (g), and brown pigments (n) are dominant over yellow pigments (n). each individual possesses two alleles for each trait. if a fly that is homozygous dominant for both traits is crossed with a fly that is homozygous recessive for both traits, what is the predicted genotype of the offspring.

Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm