Because it’s the longest river in the world
Answer:
Redi proved spontaneous generation theory by showing that maggots come from meat, not from other flies.
Explanation:
As rightly stated in the options of this question, the theory of Spontaneous generation is a theory that life forms can be generated from non-living or inanimate objects. Several scientists including Needham, Redi, Pasteur contributed to this theory experimentally by either proving or disproving it. Their contribution are as follows:
- John Needham boiled a broth containing living matter but noticed cloudy appearance representing microbial growth. Hence, when microbes grew in Needham's flask of broth, he proposed it was an example of spontaneous generation occurring in microorganisms.
- Francesco Redi, on the contrary, disproved the theory by conducting an experiment using meat. Redi DISPROVED the theory by concluding that flies were responsible for appearance of maggots on the meat. Hence, the statement that "Redi proved spontaneous generation theory by showing that maggots come from meat, not from other flies" is FALSE.
- Loius Pasteur also disproved the theory of spontaneous generation by using swan-necked flasks. His swan-neck flask experiment demonstrated that spontaneous generation does not occur
What might occur to its symbiotic match if commensalism abruptly evolved vanished?
<span>Which artery do </span>you<span> use to take </span>pulse<span> on </span>a<span> child? carotid. </span>After<span> how many minutes do </span>you<span>recheck for </span>a pulse<span> and other signs of life on </span>a<span> child? 2. how long do </span>you<span> check for </span>pulse<span> and </span>breathing?5<span>-10 </span>seconds<span>. On an </span>infant<span> how many </span>seconds<span> are between each </span>breath<span>? </span>3<span>. On an </span>infant<span>, your </span>breaths should<span> ...</span>
A) Between pH 1 and 6. This is because within this range, the enzyme activity is nonzero, whereas outside the range it is zero
b) Optimum pH. This is simply because it is the pH for which an optimum enzyme activity is achieved, maximising the rate of reaction
The final question requires a little more explanation. At this level we work with the lock and key hypothesis, that is to say the enzyme only catalyses the reaction when the substrate(s) collide with the active site with the correct orientation and minimum activation energy is exceeded. The enzyme is specialised to the substrate, so the active site (where catalysis by adsorption/desorption occurs) is a very specific shape to fit it. In denaturing, the active site changes shape such that it is no longer specialised to the substrate. The lock is no longer the right shape for the key, so the enzyme no longer works.
This denaturing can be caused by extremes in pH, where ionic interactions with H+ or OH- break bonds in the protein, or by high temperature breaking these bonds.
I hope this helps you :)
