Both Hypotonic and Hypertonic solution. Hope this helps!:)
Answer:
The atomic number
Explanation:
The number of protons in the nucleus of an atom is its atomic number
Hope it helps
Answer:
to preserve its stability.
to avoid cross contamination.
Explanation:
Biological evidence refers to all biological materials such as hair, tissue, bones, teeth, blood or other bodily fluids etc. These biological materials are collected from the site of crime. These evidences helps in finding the criminals. These biological evidences has to be kept at safe place in order to avoid contamination and preserve its stability so it can be used for solving the problem.
Answer:
an extinction of two species
Explanation:
there are no more left for the frog ti eat
Answer:
twenty amino acids
Explanation:
and
carbon
nitrogen
oxygen
hydrogen, for the second question