Keystone species for the first blank. This is because keystone species are what holds an ecosystem together.
direct impact because the removal of a keystone species is neither beneficial or a domino effect. if the entire ecosystem relies on that one species, then the niches of all the animals in that ecosystem will be directly affected.
<span>When you put the cells in a salt solution you are placing the cells into a hypertonic solution. That means the solute concentration outside the cell is higher than the solute concentration inside the cell. You should know from your own studies that water will move from areas of high water concentration to areas of low water concentration. A hight solute concentration means there is low water concentration. That means that the water will move from the onion cell and out into the hypertonic solution and the onion cell will shrivel up.</span>
Answer:
The prokaryotic chromosome is a single DNA molecule that first replicates, then attaches each copy to a different part of the cell membrane. When the cell begins to pull apart, the replicate and original chromosomes are separated.
