A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity. Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding.
Conception- This is when the egg and the sperm unite at conception, it is the fertilization and starts at the woman’s fallopian and the fertilized egg , First Trimester
- First four weeks of the conception-, Second Trimester- This is 3 months after conception and this is where the baby can be felt kicking and can hear,Third Trimester- 28 weeks after conception and is having breathing movements and the women would be adding some body fat. If I am wrong please let me know
He used it to support his theories of evolution happening faster than what the scientists back then thought.
Solarimeters are the instruments that measure solar radiation
Answer:
c. The presence of equal quantities of L- and D- amino acids.
Explanation:
All living entities have only L-type of amino acids in their cells from the origin of the life itself. Except a few bacterial cells walls may produce D-type. The presence of equal quantities is another whole new matter.