Macromolecules, or polymers, are formed by the combination of smaller molecules or monomers in a specific sequence. This is an energy requiring process called polymerization that produces water as a byproduct. Examples of macromolecules include nucleic acids, lipids, proteins and carbohydrates.
The plasma membrane is a phospolipid bilayer.
The reason why we call it a phospholipid bilayer is because it's created exactly out of that - phosphobilipids :)
Phosphorous (chemical element) + bi (means two) + lipid (means fat)
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If you look at the female cat's genital area,the space just under her tail,it will look like an upside down an exclamation mark (!) with the long slit of vaginal area below the anus. while the male cat has a narrow space between the anus and the penis, with the testicles in the middle... i hope u will understand!... :)
Answer:
Option (1), (3) and (5).
Explanation:
Positive feedback mechanism also exist in the environment that increases the causative effect of the environment. The environment can change the temperature, precipitation and other climatic conditions of the area.
The lack of moisture in Sahara desert and deforestation can cause the trees extinction. The temperature can be increased by the green house gases as the warm atmosphere causes evaporation. The snow gets melted due to increase in temperature and the ground becomes more darker.
Thus, the correct answer is option (1), (3) and (5).