In preschool, students have the current exchange system for toys: 4 orange blocks = 5 stickers 7 stickers = 2 toy soldiers 3 toy soldiers = 6 dinosaurs How many dinosaurs (dino) will a student get if they have 16 orange blocks?

Sex cells from female reproductive organ? 1) mitosis 2) fertilization 3) zygote 4) eggs 5) meiosis 6) sperm

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

What human activity increases beach erosion?