Answer: It consists of two groups, the bones along the main axis and the bones that connect the limbs to the axial skeleton.
It consists of the vertebral column and all the bones that directly connect to it.
It consists of the bones that form the limbs and the bones that attach the limbs to the axial skeleton.
It consists only of the pelvic girdle and the bones that lie below it.
Explanation:
During a stimulus, there is an influx of Na+ ions into the cells. This causes the inside of the cell to develop a more positive charge compared to outside the cell. So, the cell attains a more positive charge when it is stimulated.
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I believe the answer is B predicts impact on coastal populations
please let me know if I'm incorrect
Answer:
No
2. Yes
Explanation:
This is because DNA undergo transcription to produce RNA and RNA undergo translation to produce protein. Translation is the process where mRNA molecule is used as a template to produce protein.
RNA undergo mutation more than DNA and this is because the enzymes found in RNA viruses and participate in copying viral genomes is why it occur so. These enzymes does not have the abilities to recognize DNA damage that enzymes in most organisms have.
Answer:
Option-C
Explanation:
Scientists found a fossil of a fish with four limbs or legs. The fossil was estimated to be around 375 million years old.
The fossil showed the fins and scales of a fish but they also possess the bones of proto-wrist, shoulders and the elbow.
The presence of these bones can be a clue that the fish evolved the limbs to walk on the land and will later evolve into animals belonging to amphibians, reptiles and mammals. Therefore, the Tiktaalik is considered the missing link of how life evolved from water to land.
Thus, Option-C is correct.