Answer:
D
Explanation:
it just makes sense to me
Coral can be a good food source, which it is fished for people all over. But too much of it can be bad for coral reefs.
Using nets instead of bad fishing devices can lead to fish eating algae which is good for the ecosystem.
Traps that are too close to coral reefs can damage them, leading to death or a long time to recover.
Answer:
C. Uranus, Neptune, and Pluto
:)
Answer: 43 x 10^6 CFU.
Explanation:
Plate count is a method used to determine the number of viable microorganisms in a sample. When the bacterial concentration is high, serial dilutions are carried out in a 1:10 sequence. <u>Then, the dilutions are successive dilutions keeping the dilution factor constant at each step</u>. Small aliquots of these dilutions are seeded in medium contained in a Petri dish where the bacteria grow forming colonies. Then the plates are incubated and colonies develop both within the agar and on the surface.
If the concentration of the seeded aliquot is too high, the bacteria will grow too much and it will not be possible to distinguish the colonies. <u>However, if the concentration is very low, the number of colony forming units (CFU) may be very low and thus can be counted</u>.
Colony forming units are calculated:
CFU = Number of colonies / (volume seeded on the plate * dilution).
The dilution is 10^-6, the number of colonies counted is 43, and usually the volume plated is 0.1 mL, so we replace that in the equation:
CFU= 43 / (0.1 mL * 10^-6)
CFU= 43000000 = 43 x 10^6
For both the processes of aerobic and anaerobic respiration, glucose is mandatory. The correct option is D.
<h3>What is respiration?</h3>
The process by which cells break down sugar and obtain energy by using oxygen is referred to as respiration.
It can be done in presence of oxygen i.e., aerobic respiration or without oxygen, i.e., anaerobic respiration.
For both the processes of aerobic and anaerobic respiration, glucose is mandatory.
Thus, the correct option is D.
For more details regarding respiration, visit:
brainly.com/question/12605249
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