Answer:
Viruses are not living things. One reason viruses are not alive is because they require a host to survive and reproduce. A second reason a virus is not alive is because they do not stimuli. A final reason that a virus is not alive is that they are not made up of cells. All living things can reproduce without a host, are made up of cells and react to stimuli except viruses, so they are not living.
Answer: Enzymes lower the activation energy found in food molecules
Explanation:
Food substances like yam, potatoes, egg etc are all made of chemical elements bounded to one another by chemical bonds such as hydrogen bonds, covalent bonds etc
During digestion, these bonds must be broken for carbohydrates to yield glucose, protein to yield amino acids.
Hence, added enzymes lowers the strength of this bonds i.e activation energy, by placing them into their active sites, which is equipped to cleave specific bonds
Thus, digestive reactions are quicker in the presence of enzymes than otherwise.
No because mutations can lead to bad things
Answer:
macroevolution
Explanation:
Macroevolution occurs due to the genetic differences accumulates in the population of the same species which gets reproductively isolated from the older population and got different environments and resources to live.
Macroevolution leads to the creation of a new species over a long period of time because of the genetic difference that occurs due to mutation in the gene in the population who got reproductively isolated. So the new species evolved from the macroevolution.
Answer:
The head, which is the top of the bone that fits into the shoulder joint. ... The anatomical neck is the portion that lies just below the head. As the neck continues along the humerus body, it is called the surgical neck (so named because this is the location of many fractures that require surgery)
Explanation: