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Troyanec [42]
3 years ago
6

PLZ HELP ME I NEED THIS TONIGHT!!! Which of the following describes soil and temperature in an ecosystem?

Biology
2 answers:
ELEN [110]3 years ago
8 0

Answer:

B. abiotic factors.

Explanation:

Abiotic factors describe soil and temperature in an ecosystem.

OleMash [197]3 years ago
7 0

Answer:

B.  Abiotic  Factors

Explanation:

Abiotic factor: Nonliving chemical and physical parts, just like temperature and soil in an ecosystem

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The four most common chemical elements found in living matter are
Romashka [77]

Explanation:

In all living system we can always find basic elements carbon, oxygen, nitrogen and hydrogen, carbon is the basic building unit contained in living matter. The percentage of carbon in the mass of living matter is 19.0% oxygen and hydrogen are present in almost all organic compound which creates living organisms.

5 0
2 years ago
50 POINTS + BRAINLIEST TO THE CORRECT ANSWER
I am Lyosha [343]

Answer:

c. potential Hydrogen strips and written observations of stream water

8 0
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Correctly identify each of these definitions or examples as either depolarization or hyperpolarization of the plasma membrane. 1
natulia [17]

Answer:

  1. hyperpolarization
  2. depolarization
  3. hyperpolarization
  4. depolarization
  5. hyperpolarization
  6. depolarization
  7. depolarization

Explanation:

The resting membrane potential is balanced by ion leakage and ion pumping, to get an electrical signal started the membrane potential has to lose its balance. This starts with a membrane channel opening for Na+ since Na+ concentration is higher outside the cell, ions will rush into the cell. This will change the relative voltage inside the cell. The resting potential has a voltage of -70 mV, the sodium cation entering the cell cause it to become less negative. <em>This is known as depolarization.</em>

The concentration gradient for Na+ will continue to enter the cell making the voltage to become positive reaching +30 mV. At the same time, this happens, other voltage-gated channels are also opening, a concentration gradient acts on K+, as well, as it leaves the cell, it takes a positive charge with it making the membrane potential to move back to its resting voltage of -70 mV. <em>This is called repolarization. </em>

For potassium ions to reach equilibrium the membrane voltage needs to be below -70 mV, this leads to a period of <em>hyperpolarization</em> that occurs while the K+ channels are open.

I annexed an image that illustrates this action potential process.

<em>Considering the information given during depolarization there's an increase in the number of sodium leak channels (7) making the inside of the cell more positive (2) increase in the membrane potential (4), this also implies a decrease in the extracellular concentration of potassium (6)</em>

<em>Meanwhile, during hyperpolarization an increase in the extracellular concentration of potassium (3) decreases the membrane potential (1) making the inside of the cell more negative (5).</em>

I hope you find this information useful and interesting! Good luck!<em>       </em>

4 0
3 years ago
The first part of cellular respiration occurs in these compartments of the cell. ______________
Mandarinka [93]

Answer:

The correct answer is - cytoplasm of the cell.

Explanation:

Cellular respiration is the bunch of metabolic reactions that convert biochemical energy from the glucose or other nutrients into ATP ( adenosine triphosphate) and releases water and carbon dioxide as waste products.

This process has three stages and the very first stage is glycolysis which is taking place in the cytoplasm of the cell. In this stage, the glucose molecule converts into the two molecules of pyruvate and produce energy.

Thus, the correct answer is - cytoplasm of the cell.

3 0
3 years ago
Which correctly lists three factors that contribute to weathering of rock?
disa [49]
Ice water and wind (A)
8 0
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