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elena55 [62]
3 years ago
6

The purpose of a control in a scientific experiment is to

Biology
2 answers:
WINSTONCH [101]3 years ago
4 0
Observation designed to minimize the effects of variables other than the independent variable.
IgorLugansk [536]3 years ago
3 0
Allows for comparison and increase reliability of experiment
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which condition is a population that descended from a small number of common ancestors more likely to have
lapo4ka [179]

decreased ability to survive changing conditions

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3 years ago
Johanna took her little brother to the playgrond because he likes to swing
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the boy is in Kinetic energy

Explanation:

Because when he swings he isn't experiencing any forces towards him only the swing experiences potential energy

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2 years ago
Please Help asp
solmaris [256]

Answers:

1. Facilitated diffusion: the process by which some molecules that are not able to pass directly through a cell membrane are able to enter the cell with the aid of transport proteins.

2. Osmosis: the diffusion of water molecules through a selectively permeable membrane.

3. Diffusion: the spreading out of molecules across a cell membrane until to they are equally concentrated.

Step-by-step explanation:

Diffusion is the spontaneous movement of molecules across a membrane from an area of high concentration to one of low concentration gradient.

Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of low solute concentration to one of high solute concentration.

Facilitated transport occurs when molecules cannot diffuse directly through a cell membrane but can diffuse down a concentration gradient through transport channels in the membrane.

8 0
3 years ago
How do matter and energy move through an ecosystem? Your answer should include at least 6 complete sentences to explain the clai
Verizon [17]

One example:

Energy moves through an ecosystem through different organisms. For example, plants can absorb energy from the sun. Animals, such as grasshoppers, can eat the plants and the energy goes to them. Progressing higher up the food chain, the energy continues to transfer through different animals - grasshoppers can be eaten by mice, mice by snakes, snakes by eagles, etc. etc.

6 0
2 years ago
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What specific changes in rachel’s muscle cells and kidney function are leading to elevated plasma k levels?
tensa zangetsu [6.8K]

Intracellular Potassium Shifts and Impaired Potassium Excretion leads to elevated plasma K levels.

What is Hyperkalemia?

  • Hyperkalemia, a potentially lethal condition, develops when serum potassium levels rise above 5.5 mmol/l.
  • Potassium is the most common intracellular cation and is crucial for many physiological functions, at a concentration of 100-150 mmol/l. The digestive system quickly and usually fully absorbs potassium.

Causes:

  • Increased Potassium intake: In adult patients with normal renal function, increased dietary potassium intake is a very rare cause of hyperkalemia, but it can be a significant factor in people with kidney disease.
  • Intracellular Potassium Shifts: Large amounts of intracellular potassium can be released into the extracellular area as a result of cellular damage. Excessive activity, rhabdomyolysis after a crush injury, or other hemolytic processes can all be to responsible for this. 
  • Impaired Potassium Excretion: The most frequent cause of hyperkalemia is acute or chronic renal disease. Hyperkalemia may also result from tubular dysfunction brought on by aldosterone insufficiency or insensitivity.

Learn more about the Hyperkalemia with the help of the given link:

brainly.com/question/8920601

#SPJ4

5 0
1 year ago
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