Nervous system
Nervous system is made up of organized group of cells (neurons)
that specialized for the conduction of electrochemical stimuli or signals from
sensory receptor to other sites. Thus, these signals are sent in form of
electrochemical waves that travel through thin fibers called axons. They are
made up of two parts namely: Central Nervous system and Peripheral Nervous
system.
Metallic bonds are the force of attraction between positive metal ions and the valence electrons that are constantly moving around them. The ions form a lattice-like structure held together by the metallic bonds. Metallic bonds explain why metals can conduct electricity and bend without breaking
Answer:
C. The punching bag applies the same amount of force to the boxer’s hand.
Explanation:
Had the same question
<span>W</span><span>ith growing worldwide interest in the oil and gas</span>
r<span>eserves of the Caspian region, the ecological prob-</span>lems of the area are also receiving increased attention.Due to its position in the far southeast of Europe, littleinformation about the region was available in the Westuntil recently, and it was not until a few years ago thatthe public became aware of the potential disasterthreatening the unique ecosystem of the Caspian Seaand its immediate surroundings (Dumont 1995). Stone(2002) described most of the acute problems in thisarea: reduction of the river run-off reaching theCaspian Sea caused by damming the main tributary,the Volga river; the unstable water level; the varioussources of pollution; the over-utilisation of its livingr<span>esources (in particular the sturgeon species); and,</span>finally, the threat to the entire system posed by a newinvader, the ctenophore <span>Mnemiopsis leidyi<span>.</span></span>
Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.