What thee components make up a nucleotide

Molecules A and B come in contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but molecule B does not. Which statement could describe molecules A and B? a. Molecule A is a protein, and molecule B is a fat.

The human body needs energy in order to carry out life processes such as breathing. Where does the body get this energy? A. from eating food B. from sleeping C. from learning about new things D. from lying in the sun

Which of the following best defined weather: 1 - events that happen over a long period of time 2 - a seasonal pattern of events in the hydrosphere 3 - the atmospheric conditions at a particular time 4 - a measure of kinetic in the atmosphere

List two natural disturbances and two human-made disturbances that can lead to succession

When using hand signals when driving, if the drivers arm is downward it means?

Which of the following is a prediction based on the cell theory that all organisms are made of cells, and all cells come from preexisting cells?1. If you boil nutrient broth and place it in an air-tight flask, cells will appear in the broth2.

During photosynthesis, the energy from sunlight is used to split water molecules. What happens to the hydrogen ions that are split from the water molecules?

Which part of a scientific argument must be supported by valid data

What is used as evidence for continental drift

Ocean floor rocks are. Continental rocks