Answer:
The answers are matched as follows:
African forests have been hunted to near extinction levels to obtain ivory-------------->human exploitation
The eruption of mount Saint Helens destroyed some populations of conifers------> natural disasters
An infection with a fungus reduced the population of North American Elm trees ----> disease
Increasing global temperatures have altered migration patterns of humpback whales ------>climate change
Answer:
B) astrocytes
Explanation:
Cells other than neurons that play an important role in the normal functioning of nervous system are called Neuroglia or glial cells.
Satellite cells, astrocytes, schwann cells and oligodendrocytes are all examples of glial cells.
⇒Satellite cells provide protection and nutrition to cells in peripheral nervous system ( peripheral nerves and ganglia).
⇒<em><u>Astrocytes</u></em> play an important role in central nervous system (brain and spinal cord). They provide protection to neurons, scavenge ions, form the blood-brain barrier and also maintain extracellular environment suitable for neuronal functioning.
⇒Schwann cells are found in the peripheral nervous system and myelinate the axons of neurons.
⇒Oligodendrocytes are found in central nervous system and produce myelin sheath which myelinates (insulates) axons of neurons. Their function is similar to schwann cells but in the central nervous system.
From the above discussion it is clear that the answer is B) Astrocytes as these maintain a suitable chemical environment for the neurons.
Answer:
It depends on the bone and what you mean by function, if you mean live and be "normal" then probably.
Explanation:
A tooth is a bone, and there are plenty of people missing some. They can definitely function without one. If a person is missing on the bones that makes up the skull they might need to be more careful or get surgery in order to properly protect their brain.
Answer: monosaccharides
(monosaccharides are sugars that cannot be hydrolyzed further to yield simpler sugars. an example of a monosaccharide would be glucose)
———
i hope this is right, super sorry if it’s not
Answer:
1. Don't water plants if it's raining.
2. Be careful not to use too much water or spill.
Explanation:
Brainliest, please :)
