The lymph nodes are the lymphoid organs that serve in immune surveillance and in filtering lymph. They <span>are found in the neck, armpits, and groin areas. If a lymph node is swollen it means that there is an infection or injury.If you notice swollen lymph node you should see your doctor.</span>
Answer:
Ohm's law
Explanation:
Ohm's law states that the potential difference across the ends of the conductor is directly proportional to the current passing through it.
∴V∝I
<span>This
type of symbiosis is commensalism. Commensalism is a relationship between two
organisms in which one benefits from the other and the other organism is not affected
in any way. From the question above, in the relationship, microscopic mites are
the commensals as they benefit from their host; humans and humans neither benefit
nor are harmed.</span>
Answer: Their growth is strongly affected by the environmental conditions found in the root zone.
Explanation: To survive and grow, they need Air (gas exchange), Water, Non-limiting Temperature, Carbohydrates, Minerals, Space, Low Soil Density, Microbial Associations and Non-toxic soil chemistry.
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited. In other words, it is the gradual growth of an ecosystem over a longer period.[1][2]
In contrast, secondary succession occurs on substrate that previously supported vegetation before an ecological disturbance from smaller things like floods, hurricanes, tornadoes, and fires which destroyed the plant life.[3]
