Fossil Record - Provides proof by exposing the details of a ancestor for compared to the living one.
Geographical Distribution of Living Things - a pattern of the ancient existing species, isolated land and islands have their own species of plants and even some animals.
Similarities in Development - Charles Darwin used the science of embryology to test many species within a class to find out that they are similar even if the adult version looks completely different.
Molecular Similarities - its believed that natural selections isn’t the reason for evolution actually its the genetic drift of mutant alleles that are neutral.
I hope this is good
The answer is stroke. This means that formation of plaque in the blood vessels that serve the brain cause thickenning of the inner walls of the vessels. When the plaque ruptures, a blood clot forms and blocks blood passage to a particular region of the brain served by the vessel. This stifles oxygen supply to the respective part of the brain leading to the death of the cells in the region.
Answer:
It will swell and eventually burst because water from the environment is flowing into the cell
Explanation:
This question is describing OSMOSIS, which is the movement of water from a region of high concentration to a region of low concentration across a semi-permeable membrane. The osmotic process is facilitated by the formation of an OSMOTIC GRADIENT i.e. difference in concentration between the two sides of the membrane.
In this case, an animal cell containing an internal salt concentration of 70% (hypertonic) were placed in a salt solution with a concentration of 20% (hypotonic), OSMOSIS will occur in the sense that water will move from where it is more concentrated (salt solution) into where it is less concentrated (animal cell), hence, the animal cell will SWELL AND EVENTUALLY BURST.
