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pogonyaev
3 years ago
8

The air density is so low in this layer of Earth's atmosphere that this is the location we normally think of as the start of out

er space. A) mesosphere B) stratosphere C) thermosphere D) troposphere
Biology
1 answer:
Nutka1998 [239]3 years ago
3 0

The answer is C because you have to know the outshell of the layers and the temperture

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I need help labeling please help
dusya [7]

Explanation:

1) cytoplasm

2) mitochondria

3) ribosome

4) endoplasmic reticulum

5) nucleus

6) lysosome

7) call membrane

8) cell wall

9) Golgi apparatus

10) vacuole

5 0
3 years ago
1: Parents can pass down many traits to their children. All BUT one of the following can be passed down. That is A) freckles. B)
siniylev [52]

1: B

2: C

3: B

4: Either A or B

8 0
3 years ago
Describe the stages of photosynthesis. Use the terms thylakoid, light-dependent reactions and light-independent reactions.
KatRina [158]

Photosynthesis in plants occurs in two stages. These stages are known as the light-dependent reactions and the Calvin Cycle.

The first stage of photosynthesis is the light dependent reactions.  These reactions take place on the thylakoid membrane inside the chloroplast.  During this stage light energy is converted to ATP (chemical energy) and NADPH (reducing power).

<span>The second stage of photosynthesis is the Calvin Cycle.  These reactions occur in the stroma of the chloroplast.  Energy from ATP and electrons from NADPH are used to convert carbon dioxide into glucose and other products.</span>

7 0
3 years ago
A tissue sampler that is being used for a medical procedure is placed inside a saline solution. Unknown to the medical team, the
solong [7]

Answer: Water will leave the cell and the cell will shrink.

Explanation:

Osmosis is the net movement of water from an area of low to high concentration of solutes through a semipermeable membrane. If none of the compartments contains solutes, then the water moves in either direction between the compartments. <u>However, if we add a solute to one of the compartments, this will affect the probability of water molecules leaving that compartment and moving into the other compartment.</u> The ability of water to move into or out of a cell is called tonicity. The tonicity of a solution is related to its osmolarity, which is the total concentration of all the solutes in the solution. A solution with low osmolarity has few solute particles per liter of solution, whereas a solution with high osmolarity has many solute particles per liter of solution. When two solutions with different osmolarities are separated by a membrane permeable to water but not permeable to solutes, water diffuses from the side with lower osmolarity to the side with higher osmolarity. So, solutions can be:

  • <u>Hypotonic</u>: The extracellular fluid has a lower osmolarity than the fluid inside the cell, it is hypotonic with respect to the cell, and the net flow of water will be into the cell.
  • <u>Hypertonic</u>: The extracellular fluid has a higher osmolarity than the cytoplasm of the cell, it is hypertonic with respect to the cell and water will flow out of the cell.
  • <u>Isotonic</u>: The extracellular fluid and the cell have the same osmolarity so there is no net movement of water.

If a cell is placed in a hypertonic solution, water will leave the cell and the cell will shrink due to the difference in pressure and may even die from dehydration.

7 0
3 years ago
How does each new cell formed by cell division differ from the mature cell? ​
Vika [28.1K]

answer B) eact new cell has fewer chromosomes in it's nucleus

4 0
3 years ago
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