A. oxygen atom
H2 O1
There are 2 hydrogen atoms and 1 oxygen atom
Answer:
b.sedimentary rock
Explanation:
because when magma cools it hardens
Answer: Yes! there is life in the stratosphere but not the type you think, it's actually microbial life forms that live on it.
Researchers and doctors hope stem cell studies can help to increase understanding of how diseases occur, and to better understand how diseases and conditions develop.
Answer:
Myelination.
Explanation:
Brain acts as one of the most important organ of the body that helps in receiving the stimuli and interpret the information in the form of signal. Two main types of neuron are myelinated neuron and unmyelinated neuron.
The myelinated neuron increases the conductivity of the impulse. The myelinated neurons are much more active than the unmyelinated neuron. In case of the quick thinking and instant actions, the myelinated neurons play an important role.
Thus, the answer is myelination.