The best answer is D
A freely suspended magnet will always point in the North - South direction in the absence of any other magnet. This suggests that the earth itself behaves as a magnet which causes a freely suspended magnet (or magnetic needle ) to point always in a particular direction namely North and South.
The south pole of the earth's magnet is in the geographic north because it attracts the north pole of the suspended magnet and vice versa. However it is important to note that the position of earth's magnetic poles are not well defined because they are spread over an area.
During complex and demanding tasks, teens distribute the workload evenly throughout the brain. In teenagers the prefrontal cortex is still developing and therefore they may rely on a part of the brain called the amygdala to make decisions and solve problems more than adults. The prefrontal cortex communicates with other sections of the brain through connections called the synapses.
The answer is the last option. both a and b are correct
The offspring are made to learn how to live on their own
Myosin heads attach to and move along actin-binding sites
