Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
Answer:
Neurotransmitters
Explanation:
Neurotransmitters are the chemicals present in the body used for the propagation of action potential. These neurotransmitters are also known as the body chemical messengers.
Neurotransmitters are stored in the neural cells. These chemicals are generally released when the cell is stimulated by the specific signal. The effect of neurotransmitter may be excitatory or inhibitory.
Thus, the answer is option (4).
No it's not because the weather changes because of the sun and moon
The answer is B. even if you fill out a Punnett Square there is still a possibility that it won't come out that way. for example there could be two dominant traits in a Punnett square instead of just one completely dominant trait. like BB and BB.
Answer:
Polarity is the distribution of electric charge over the atoms joined by the bond.
