b. spread out from one pole and curve around to the other.
Desertification is the inability of ecosystems to fulfill their regulatory function caused by deforestation, overgrazing, and overworking the soil.
<h2>What is desertification?</h2>
Desertification is a phenomenon that implies the loss of fertile soils due to climatic variations and human activities.
- The three main causes of desertification are overgrazing, deforestation, and unsustainable agricultural practices.
- Overgrazing and deforestation destroy the protective vegetation layer that covers arid and semi-arid regions.
Therefore, we can conclude that desertification is the process of ecological degradation through which areas of land that were fertile and productive are transformed into deserts.
Learn more about desertification here: brainly.com/question/2426422
Answer:
The correct answer a. Normal microbiota may significantly impact human health and disease.
Explanation:
Even though many organs and body parts of humans are properly working with the presence of microorganisms, when the population exceeds certain limits, the effect can be opposite and bad for health.
Feed-forward is used to describe the action of muscles.
<h3>What is Feed-Forward in the body?</h3>
- In physiology, a feed-forward homeostatic control system (also called a feed-forward homeostatic control system) enables the system to predict changes in regulatory variables.
- It predicts changes by virtue of the predictive effect of one intermediate on another further down the signaling pathway.
- Feed-forward or anticipatory control mechanisms permit the body to predict a change in the physiology of the organism and initiate a response that can reduce the movement of a regulated variable out of its normal range (7, 23).
- Impairments are measured and taken into account before they affect the system.
- In the house example, a feed-forward system could sense when a door is open and automatically turn on the heating before the house gets too cold.
To learn more about feed-forward system from the given link
brainly.com/question/6031934
#SPJ4
Nuclear fusion is the answer of this question
