When the concentration of a certain solute is low inside the cell with respect to the cell's external environment, then the cell performs active transport of the solute from the cytoplasm with a low concentration of solute within the cell to the cell's external with a high concentration of the solute. This process of active transport requires the need of energy in the form of ATP to drive the pumps that are present on its cell membrane.
Carbon has 4 valence electrons and can thus bond to 4 other atoms. Thats why it is called tetravelent. (2 electrons from the 2s orbital and 2 electrons from the 2p orbital contribute to a sp3 valence hybridization allowing carbon to form 4 bonds)
Answer:
Convergent plates collide causing earthquakes and volcanoes, and creating mountains.
Therefore second answer, The plates move towards each other at these boundaries and the more dense plate will sink under the less dense plate into the mantle where it is destroyed. (This creates a trench.)
Explanation:
In the lithosphere the plates melt when they go down.
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Remember:
Convergent = Collide
Divergent = Divide
Transform = Slide
If snakes are taken out of the environment, the population of salamanders would rise significantly due to the lack of a predator, resulting in an over-hunting of earthworms, causing earthworm populations to fall.
The answer is:
C) Skeletal muscles are an example of voluntary muscle
Hope this helps.
