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s344n2d4d5 [400]
3 years ago
9

WILL MARK YOU BRAINLIEST!

Biology
2 answers:
Andreyy893 years ago
7 0
Which one all of the or what
Anit [1.1K]3 years ago
6 0

Answer:

Below .

I hope the information give below is helpful .

Explanation:

In question 1 ;

The independent variable is the fertilizer

The dependent variable should be the rate of growth of the plants

The constant doesn't change so other factors that affect plant growth and health, such as soil quality and watering, would need to remain constant.

The controlled variables might be things such as the the quality of soil and the amount of water given to the plants. If these factors were not constant, and certain plants received more water or better soil than others

The experiment in question 1 is a controlled experiment

The part of the garden that didn't receive fertilizer is the control group

According to the question; She didn't hypothesize .

In question 2 '

The independent variable is the floor wax

The dependent variable was protecting the floor tiles against scratches.

It is a controlled experiment but there's no much information to determine if there is any variability and repetition )

The sections that received no wax is the control group

There is no hypothization (if that's a word :) ).The shopping mall didn't hypothesize (maybe that the tough steel would be better )

I'm not sure of any constant needed  when applying floor wax.

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mote1985 [20]

The right answer is the activation energy.

The catalyst increases the reaction rate by introducing new reaction paths (mechanism), and lowering its activation energy, or activation Gibbs free energy. By doing this it can increase the speed, or lower the temperature of the reaction. It is important to note that the catalyst does not alter the total Gibbs free energy of the reaction which is a system state function and therefore has no effect on the equilibrium constant.

7 0
3 years ago
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When solutes move AGAINST their concentration gradient (move from LOW concentrations to HIGH concentrations), it must use ______
mina [271]
Energy. A solute can only move against concentration gradients using active transport which requires energy
4 0
3 years ago
The suprachiasmatic nucleus influences the release of melatonin by its effect on the ________________.
anyanavicka [17]

Answer:

Pineal gland

Explanation:

The suprachiasmatic nucleus is the paired nucleus made of about 1000 neurons each in the hypothalamus. The suprachiasmatic nucleus is involved in maintaining the endogenous clock or the internal clock.

The suprachiasmatic nucleus controls the circadian rhythm by controlling the amount of melatonin. The melatonin is produced by the pineal gland from the serotonin and tryptophan precursors.  The hypothalamus thus controls the amount of the melatonin by regulating the pineal gland.

Thus, Pineal gland is the correct answer.

5 0
3 years ago
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
Sugar is a component of which of the following? carbohydrates lipids nucleic acids
kondaur [170]
Sugar is a component of carbohydrates, but it should be noted that this is a slightly misleading question, since sugar itself is actually a carbohydrate. 
4 0
3 years ago
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