In a lab experiment with peroxide and yeast, the hydrogen peroxide (2H2O2 ) breaks down into water (2H2O liquid) and oxygen (O2 gas) in the presence of yeast. The yeast serves as a . Catalyst in the decomposition of the hydrogen peroxide

Substrate in the decomposition of the hydrogen peroxide

Active site between the hydrogen peroxide and water

Synthesis in the decomposition of hydrogen peroxide

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

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

Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .