Answer:
nitrogen is an essential nutrient for sustaining life on earth, without it, plants would die, then herbivores due to starvation, and so on
Explanation:
Carbon skeletons may vary in length, shape, number and location of double bonds and other elements covalently bonded to available sites.
A carbon atom contains four valence electrons thus, exhibiting a strong tendency to make covalent bonds with other atoms so as to complete its octet. Covalent bonds join carbon atoms together in long chains that create the skeletal framework for organic molecules.
A carbon atom could be linked to as many as four additional carbon atoms in an organic compound. Carbon atoms can also quickly form double bonds (where four electrons are shared among two atoms) and triple bonds (where six electrons are shared).
This variation in carbon skeletons contributes to the diversity and complexity of organic molecules.
To learn more about covalent bonds here
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Answer:
Option D, sense organs
Explanation:
Since the sense organs of the baby are active, he/she could feel the warmth of the water. He/she could view the bubbles formed in the water which on touching are splashing/bursting. Here the baby is utilizing his/her eyes for seeing the bubbles and hand (skin) to burst them. Since, the baby is able to sense all the pleasures and sensations associated with bathing in warm water, he/she is enjoying.
Hence, option D is correct
Answer:
The three parts of an amino acid are the carboxyl group, the amino group, and the central carbon that contains the R group.
<span>The point at which the brakes begin to slow the vehicle is called the braking point. Technically speaking the brakes do not actually stop the vehicle, the vehicle is stopped by friction. The brakes stop the wheels and this process begins with the disc brake system. When the brake pad contacts the rotating brake disc it causes the vehicle to slow down due to friction.</span>
