<h2>Kelp forests decline</h2>
Explanation:
- Kelp forests rely on the proper balance of herbivory and predation
- Sea urchins dwell on the seafloor where they forage on macro algae, including giant kelp,if their populations are left unchecked by predation they can prevent kelp from growing which can transform a thriving community of kelp into an oceanic desert, known as an urchin barren
- If there is a decline in sea urchin population then there will be an increase of kelp population because it lost a predator
- The kelp crab will diminish because the sea otters would prey on them more often after losing a food source and the sea otters population will also decrease with time
- The horn sharks will slowly die from the lack of food because sea urchins were their only prey and the northern elephant seals will decline as well because of the death of horn sharks
- Hence, the decline in sea urchin population will upset the entire kelp population
Answer:
Volume = 113.112 m³
Explanation:
Given the following data;
Radius = 2 meters
Height = 9 meters
To find the volume of a right circular cylinder;
The volume of a right circular cylinder is calculated by multiplying the area of its circular base with the height of the cylinder.
Mathematically, the volume of a right circular cylinder is given by the formula;
Volume= πr²h
Where;
r is the radius of the circular base.
h is the height of the cylinder.
Substituting the values into the formula, we have;
Volume = 3.142 * (2)² * 9
Volume = 3.142 * 4 * 9
Volume = 113.112 m³
Abiotic factors are things that aren't living that effect an environment, like pH (how acidic the soil is), the temperature, amount of light, and so on. These can effect a population by making it more difficult to survive, perhaps creating more competition over available resources and so on. So for example, if the soil is really acidic in an area, a population of plants may not be able to grow well in that environment.