Answer:
The correct answer is statement A.
Explanation:
The procedure of purifying ocean water, that is, the saline water so that it can become suitable for drinking is termed as desalination. Almost 70 percent of the Earth is covered with water and of this only 3 percent is used for drinking purposes. On a huge scale, the process of desalination would require the boiling of water, which would eventually require an enormous amount of energy.
Reverse osmosis and electro-dialysis are the methods used for desalination. However, these procedures are very costly and cannot be performed on a huge level as it can affect the economy of various countries.
I – False
II – False
III – True
A cellulose cell wall surrounds both the bacterial and plant
cell. FALSE
TRUE – A Cellulose cell wall surrounds only plant cells.
Lysosomes and mitochondria are responsible for respiration
in prokaryotes and eukaryotes respectively – FALSE
TRUE – Mitochondria
are responsible for respiration in both prokaryotes and eukaryotes
Similarities of fossils of chimpanzees and humans are an
example of Molecular Homology – TRUE
Answer:
A- Different species
Explanation:
Dogs and Cats are distinct species incapable of producing offspring because of the many differences in their genome.
<span>This result is produced by the selective permeability of the plasma membrane when the presence of negatively charged ions does not diffuse into the cell and the action of several sodium-potassium pump units causes an unequal distribution of charges through the membrane.</span>
D- both involve moving substances across a membrane
Reasoning:
-Active transport moves against the concentration gradient ( low to high)
-Passive transport moves higher to lower concentration
