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Sergio039 [100]
2 years ago
6

Discuss two reasons why carbon is important for life on earth

Biology
1 answer:
Brilliant_brown [7]2 years ago
6 0
Because most living things are made of or contain carbon. Living organisms need carbon to live, grow and reproduce.

Basically, all living organisms contain carbon and need it to survive and reproduce.
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During which process is energy released 1. external respiration 2. internal respiration
yarga [219]

Answer:

Internal

Explanation:

During cellular respiration, glucose is broken down in the presence of oxygen to produce carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP.

5 0
3 years ago
A student put some drops of lugols iodine solution into the water in the beaker shown to the right the water turned red after a
alekssr [168]

Answer:

diffusion through a selectively permeable membrane

Explanation:

The cell membrane selectively allows certain substances to enter or leave a cell . This implies that cell membranes are selectively permeable; they allow some substances to pass through, but not others.

Direct transport of materials across the cell membrane is often passive. Passive transport does not require energy to occur. Passive transport is the movement of substances  from a region of higher concentration to a region of lower concentration. A concentration gradient is always required.

The diffusion through a selectively permeable membrane is an example of passive transport.

The iodine moves into the dialysis tube across the semi permeable cell membrane from a region of higher concentration to a region of lower concentration in response to a concentration gradient.

4 0
3 years ago
La monera tiene aparatos reproductores
kkurt [141]

Answer:

"la monera tiene aparatos reproductores"

Explanation:

"the coin has reproductive devices"

7 0
3 years ago
Read 2 more answers
How many atoms are in something dermines it’s
Blizzard [7]

Answer:

mass

Explanation:

the chemical formula for water is H20 which means every molecule of water has 2 atoms of hydrogen and one atom of oxygen. Here comes the key part. from the periodic table of elements one sees that one mole of hydrogen atoms weight 1 gram while one mole of oxygen weights 16 grams.

8 0
3 years ago
Under certain circumstances, potassium ions ( K + ) in a cell will move across the cell membrane from the inside to the outside.
dexar [7]

Answer:

8.18 × 10 ⁻²¹.

Explanation:

The potential energy may be defined as the energy stored in the rest objects. This energy is important for the maintenance of the concentration gradient in the cell.

The change in the potential energy can be calculated as follows:

W = v2-v1 × q.

Here, the charge of the proton is considered because k+ ions has been used.

W= 0 - ( - 70. 5 mV) × 1.602 * 10^-19 C.

W= 8.18 × 10 ⁻²¹J.

Thus, the answer is 8.18 × 10 ⁻²¹.

5 0
3 years ago
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