Major blood vessels go from the heart to the lungs, and vessels go from the lungs to the heart.

Four: four

Two; two

Two; four

Four; two

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.