Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Blastula --> early embryo with spherical shape if cells before gastrulation into germ layers
Spores are small single cell structures that are capable of growing into new organisms under the proper condition
<span>Seeds reproductive structures of more than one cell</span>
Deforestation- "The action of clearing a wide area of trees."
The growth of human population would require more homes and resources for everyone. The more the population grows, the more resources required. Forests will be cut down and burned due to the need of more homes and food.
