Answer:
about 2 million species have been Identified, but more are still undiscovered under the mariana trench.
False, it is the hypothalamus
These are the regions of the earth that are occupied by living organisms.
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Answer:
They are called mechanoreceptors.
Explanation:
Mechanoreceptors are sensory receptors belonging to the peripheral nervous system. The functions of sensory receptors is to enable detection of changes (by way of stimuli) in the external environment and also monitor the internal environment. The stimuli are of various sources and different types.
Different types of cells sense different types of stimuli. Receptor cells that sense chemical stimuli are called chemoreceptors, osmoreceptors detect changes in solute concentration of body fluids, thermoreceptors sense temperature stimuli, nociceptors, and mechanoreceptors that sense pressure and vibration, sensation of sound and body position.
Answer:
Desertification affects topsoil, groundwater reserves, surface runoff, human, animal, and plant populations. Water scarcity in drylands limits the production of wood, crops, forage, and other services that ecosystems provide to our community.
Explanation:
loss of farmland