C. Carbon
Mercury is dangerous to humans
Carbon is the main element in organic compounds, so carbon is essential to life on Earth.
Answer:
B
Explanation:
We breath in oxygen, and we breath out carbon dioxide. Plants breath from the sun.
Characteristics
such as
<span><span>
1.
</span>Irritability.
Organisms react to certain stimuli in their habituated environment in order to
survive.</span>
<span><span>
2.
</span>Reproduction.
This is the natural mechanism of living organisms to produce offspring or seeds
for the next generation.</span>
<span><span>
3.
</span>Growth.
Every organisms undergoes the process of development and growth, where they
become for capable in survival.</span>
<span><span>4.
</span>Excretion.
As living organisms utilize the natural resources and undergoes bodily
processes, waste is created and is toxic which is needed to be out of the
system.</span>
<span><span>5.
</span>Movement.
Survival means being able to adapt and move to a certain location where you can
grow and hunt.</span>
<span><span>6.
</span>Respiration.
All organisms –fish, reptiles, mammals, or even algae undergoes cellular
respiration in order to do its functions.</span>
<span><span>
7.
</span>Nutrition.
Living organisms need food and for the plants, make food in order to function. </span>
