They showed how organic molecules could be made from Earth's early atmosphere.
The teacher
should discuss safety procedure with students at the beginning of the experiment
or laboratory assignment. The teacher
should give list of rules for students.
1.
Always wear safety goggles.
2.
Never
touch or rub eyes of face during science investigation.
3.
Keep lids on when not in use.
4.
Never use broken/chipped glassware.
It is called a cell membrane potential
Answer:a stationary front.
Explanation:
they allow repeated thunderstorms to move across the same area.
If one parent is heterozygous (Ss) and the other is homozygous recessive (ss). Mark me brainliest plz!