A Rock Hyrax or Rock Rabbit are closely related to elephants As will as Dugong which a species of manatees
Answer: false
Explanation:
Different parts of DNA are switched on or off to activate genes required for the cell specific function. Under certain conditions cells can de-differentiate, or express different genes e.g. cancer cells.
Answer:
The cell membrane of a living plant cell selectively regulates the passage of substances into and out of the cell (option A).
Explanation:
The plasma membrane in a living plant cell is composed of a double lipid layer that gives it hydrophobic character and acts as a semi-permeable barrier. The partial permeability of the substances allows regulating the passage of substances from and to the interior of the cell.
At the level of the plasma membrane there are several mechanisms and transport to allow the entry of substances needed for the cell or the output of synthesized products or metabolic waste, thus regulating the passage of substance in a selective way.
Regarding the other options:
<em> B. Plasma membranes are composed of lipids, not just carbohydrates and proteins.
</em>
<em> C. Permeability is not for all substances, but is selective.
</em>
<em> D. Plasma membrane is a lipid bilayer, not a double layer of proteins.</em>
Answer: you will end up in debt
Explanation: your losing money and your gonna have to pay it back
