Ions that move across the cell membrane from low concentrations to high concentrations are most likely * diffusing through ion channels. using energy during the process of active transport. moving through a protein. both (a) and (b).

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

Both carbohydrates and fats are used as fuel in cells. true or false

What happens to a food web when deforestation occurs due to urbanization? how does it effect the carbon cycle? how does this relate to photosynthesis?