The world’s first national park established in 1872 was . A) Shenandoah
B) Yellowstone
C) Yosemite
D) Zion
E) Sequoia

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

Along what geographical feature are most of the oil producing regions located