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HACTEHA [7]
3 years ago
5

What evidence suggests that the populations of paramecia affect each other

Biology
1 answer:
dem82 [27]3 years ago
7 0

Answer:

Decrease in number.

Explanation:

Decrease in number is the evidence that shows that the populations of paramecia affect each other because the food is limited in the environment and the paramecia species compete for the food source. During this competition, the population of paramecia decreases and only those species survive which avail the food while the remaining will die due to unavailability of food.

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Some present-day bacteria use a system of anaerobic respiration characterized by an electron transport chain analogous to that f
geniusboy [140]

Answer:

The correct answer would be:

Neither of these response options accurately features the anaerobic electron transport chain.

Explanation:

The anaerobic respiration system vibrated by an electron transport chain is a mechanism that anaerobic bacteria have to maintain their respiration.

This mechanism does not require oxygen in the atmosphere, that is why it is said to be an anaerobic mechanism.

Bacteria do not all need oxygen in the environment to live, some need that oxygen is not exactly present (strict anaerobes) or that it is at low partial pressures (facultative anaerobes).

This mechanism is very characteristic in its location since it is located in the inner membrane of the mitochondria, that is why it will decide to indicate that option as the correct one.

6 0
3 years ago
You measure the pH of your backyard soil and find it is 7. You measure the pH of your friend's backyard soil and find it is 4. H
olchik [2.2K]

Answer:

1000 times.

Explanation:

Hello,

In this case, since the pH is defined by:

pH=-log([H^+])

If we want to compute the concentration of hydrogen we must write:

[H^+]=10^{-pH}

Thus, for both the backyard soils we compute:

[H^+]_{pH=7}=10^{-7}=1x10^{-7}M

[H^+]_{pH=4}=10^{-4}=1x10^{-4}M

It means that:

\frac{[H^+]_{pH=4}}{[H^+]_{pH=7}} =\frac{1x10^{-4}M}{1x10^{-7}M}\\ \\\frac{[H^+]_{pH=4}}{[H^+]_{pH=7}}=1000

It means that the concentration of hydrogen at a pH of 4 is 1000 times greater than the concentration of hydrogen at a pH of 7.

Regards.

4 0
3 years ago
How do mirnas function in controlling gene expression?
SpyIntel [72]

Answer:

The genes of the ath operon code for the enzymes necessary to use athelose as an energy source. ... How do miRNAs function in controlling gene expression? by binding to mRNAs and degrading them or blocking their translation. Name the starting molecule from which cDNA is synthesized and the enzyme that does the synthesis

Explanation:

6 0
3 years ago
Human red blood cells that lack sufficient hemoglobin would have a low amount of what substance?
lisabon 2012 [21]

If a human’s red blood cells will lack sufficient amount of hemoglobin, he or she would have also a low amount of oxygen.

Hemoglobin is what makes the red blood cells red in color, aside from the abnormal color, the red blood cells also make up of oxygen.  It can also be with iron since iron is bind to hemoglobin all the way to the lungs.

6 0
3 years ago
HELP QUIZ DUE TONIGHT!!!!!!!!!!!
worty [1.4K]

Answer:

ok

Explanation:

3 0
3 years ago
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