Answer:
The correct answer is -
Competition
availability of food
Explanation:
Density-dependent factors can be either a positive or a negative correlation to population size. These factors depend on the size of the particular population. They can increase or decrease or limit depending on the change of the size of the population.
Competition is one of the density-dependent factors that occur when reaches a high density, then there are multiple contenders for a single resource.
Availability of food - availability of food also depends on the size of the population if the population increases the availability of food is decreases or limit.
The type of solution in each beaker based on cell's reaction are :
- Isotonic solution : Normal reaction
- Hypotonic solution : The cell becomes turgid
- Hypertonic solution : The cell becomes deformed
<h3>Matching each solution to the cell reaction </h3>
When the red blood cell is placed in an isotonic solution the solvent flows in and out of the blood cell at the same rate, when the cell is placed in a hypotonic solution the solvent flows into the cell at a faster rate causing the cell to swell ( becomes turgid ) also when the cell is placed in a hypertonic reaction the cell becomes deformed becomes it loses more water than it absorbs.
Hence we can conclude that The type of solution in each beaker based on cell's reaction are : Isotonic solution : Normal reaction, Hypotonic solution : The cell becomes turgid, Hypertonic solution : The cell becomes deformed
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Answer:
a. By Calculating magnetic reversals.
Explanation:
They determine the age of the ocean floor by examining magnetic fields in the planet Earth.
