Diffusion across the alveoli
Answer: hi! Sorry I wish I could help, but I hadn’t read it sorry :(
Explanation:
Answer:
This is true.
Explanation:
More commonly, an X chromosome will die and get replaced by a Y chromosome (all humans start off as females). When this occurs, the substitute Y chromosome causes changes in the zygote to occur; they begin developing male genitalia (i.e. penises, testicles, prostates, etc.).
Answer:Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. So enzymes speed up reactions by lowering activation energy
Glucose. <span>C6H12O6. Photosynthesis produces it and it is a reactant for cellular respiration. </span>