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alexira [117]
3 years ago
14

____keep most populations in their natural habitat at a population size somewhere between extinction and overrunning the ecosyst

em.
PLEASE HELP!!
Biology
1 answer:
valina [46]3 years ago
6 0

Answer:

limiting factors

Explanation:

The ecological optimum represents the value of the factors within the ecological valence at which the life processes of a species take place best. The upper and lower limits of an ecological valence are its maximum and minimum. Beyond these limits, physiological processes are interrupted and death occurs.

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Na + Cl2 --> NaCl if you were given 15 grams of sodium (with excess chlorine) and asked to determine the amount of NaCl that
Elena-2011 [213]

Answer:

The correct answer is - 38.15 gm of NaCl.

Explanation:

Write the balanced equation for this reaction of sodium (Na) and chlorine (Cl₂) to produce sodium chloride (NaCl):

2Na + Cl₂ —> 2NaCl

the mass of Na and the mass of NaCl :

Molar mass of Na = 23 g/mol

In the balanced equation = 2 × 23 = 46 g

Molar mass of NaCl = 23 + 35.5

= 58.5 g/mol

similarly in balanced equation = 2 × 58.5 = 117 g

From the balanced equation above,

46 g of Na reacted to produce 117 g of NaCl.

By converting it to 15 grams of Na.

Therefore,15 g of Na will react to produce = (15 × 117)/46 = 38.15 g of NaCl.

Thus, 38.15 g of Na

4 0
3 years ago
Why are complex carbohydrates better for storing energy than simple sugars are?
gtnhenbr [62]
Because it is harder to get the sugars out of complex carbohydrates and easier to get sugars out of simple sugars hence the name. 
7 0
3 years ago
Which of Earth's layers is formed by volcanic activity?
mojhsa [17]
I believe it is the crust 
5 0
3 years ago
Why do many diseases such as measles occur only once in a person yet others such as colds occur more than once?
mezya [45]

Answer:

This happens because of our immune system. Our immune system keep record of every attacking microbe. It contains two type of while blood cells firstly is T cell that respond quickly to the attacking microbe. While secondly B cells that recognize those specific cells and fights them off. In addition to that B cells clones itself as memory cells for that disease and will remains in your body for years

3 0
3 years ago
This sea is really a lake. Black Caspian Dead Mediterranean
Bad White [126]

Caspian sea

Explanation:

The Caspian sea is actually a very large lake. It is called an endoheric lake in that it does not flow outwards.

  • The Caspian sea is completely surrounded by land in all sides
  • It is located in Asia and bordered by Iran, Kazakhstan and Azerbaijan.
  • It is an inland, saline lake.
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learn more:

Caspian sea brainly.com/question/9557333

#learnwithBrainly

8 0
3 years ago
Read 2 more answers
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