For a science project Kala wants to determine whether the color of some purple candy comes from one dye or from several mixed together. Kala asks her chemistry teacher, who says "I think you should make a А ]." Kala says "But I don't know anything about B ]r Her teacher replies
"Don't worry, I'll explain the method. First, we'll need to dissolve a sample of the candy in a solvent. Next, we'll drop a small amount of this solution onto one
edge of a large sheet of coarse paper laid flat in a tray..."
What are the missing words A and B in this story?
A=
Х
B =

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

This drawing shows a human body system. what is the primary function of this body system?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.