Animals have nervous systems a. collect metabolic wastes. b. gather information. c. produce offspring. d. acquire oxygen and nutrients..

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?

Transposon can cause mutations in genes at or near the site of transposon insertion. it is possible for these elements to transpose away from their original site, causing a reversion of the mutant phenotype. in some cases, however, even more severe phenotypes appear when these elements excise from this site, due to events at or near the mutant allele. what might be happening to the transposon or the nearby gene to create more severe mutations?