Problema 1.- Los rieles de una via de tren de acero, tienen 1800 m de longitud. ¿Qué longitud tendrá cuando la temperatura aumente de 24'C A 46°?

Identify the electromagnets with poles that are reversed from the electromagnet shown above

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.

2. what two items do autotrophs take from the environment to produce their food? 3. what are the two items that are released during transpiration from leaves? 4. what are the two membranes of the system? a.what are the two stages of photosynthesis? what are the two parts of photosynthesis?