Alleles are used by cells to make proteins. When an allele changes, the protein that the cell makes also changes. The new alleles cause the cell to make new proteins. Normal Makes Allele Protein Mutated Makes Allele Protein How do you think new proteins affect the fitness of children? A. They have no effect on fitness
B. They increase fitness
C. They decrease fitness
D. All of the above

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

Nucleic acid certain protein cell membranes certain carbohydrates

Why does bubbling occur when vinegar mixed with baking soda