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PolarNik [594]
3 years ago
13

An independent variable is the part of an experiment that is...

Biology
2 answers:
Leno4ka [110]3 years ago
8 0

Answer: doesn’t change

Explanation:

irga5000 [103]3 years ago
6 0

Answer:

The independent variable is a part of an experiment that changes in order to make the dependent variable change.

Explanation: Ex: If you leave an apple in the sun for 12 hours (independent)

it will begin to rot (dependent)

Hope this helps! <3

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When things are difficult in your course and you are having trouble what resources can you use to help you find the answers?
navik [9.2K]

Answer:

You can ask your teacher, or use the resources that they have provided for you. You can also use professional websites that your teacher would approve of.

Explanation:

7 0
3 years ago
Blood is a mixture of a variety of materials. Some of the materials are dissolved in the fluid portion of blood. Other materials
FinnZ [79.3K]
<h2>Answer:</h2>

Blood Is A Heterogeneous mixture.

<h2>Explanation:</h2>

Heterogeneous mixture is a mixture that is made up of different substance that remains physically separated which means the cell organelles (Red blood cells, white blood cells, platelets etc.)present in blood does not mix completely and hence get precipitated after kept still for a while.

There are three ways to identify a Heterogeneous mixture.

  1. It has chunks of stuff that you are able to see with your eyes.
  2. It appears cloudy(blur).
  3. After a while, the substance will separate into layers at settle at the bottom(gets precipitated).

Result: Blood is a Heterogeneous mixture

3 0
3 years ago
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What 3 ways do science influence society
Romashka-Z-Leto [24]
<span>It has influence on many things like economy, industry, transport and so on.

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7 0
2 years ago
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The means for transmission of disease-causing microorganism is provided by the ____. ​
Sergio039 [100]

Answer: The means for transmission of disease-causing microorganism is provided by the direct or indirect contact.

Microorganisms can cause disease only once they are transferred to the body. The disease causing microorganisms are termed as pathogens which are transmitted by several ways such as from skin to skin, by nuclei droplets, through blood and body fluids or via air. In vector transmissions the disease is carried by the parasitic insects via animals, air borne transmission occurs when microorganisms move through air or the dust particles, droplet transmission occurs by coughing, sneezing or talking by the person who is infected while indirect transmission occurs by physical contact or by touching contaminated objects.


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3 years ago
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_The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of
Hoochie [10]

Complete question:

The endplate potential (EPP) at the frog neuromuscular junction occurs because ACh simultaneously increases the conductance of the postsynaptic membrane to Na and K

  • True
  • False

Answer:

TRUE

Explanation:

The Acetylcholine neurotransmitter is released from the presynaptic cell by the process of exocytosis.

Once the molecule is in the intercellular space, it moves forward the postsynaptic membrane to join its receptor in the motor plate.

Once the joining has occurred, the receptor acquires a channel shape allowing the ion transference that will make possible the modification of the action potential. Ions traffic will consist of the pass of sodium and calcium to the interior of the cell and potassium to the exterior. Quantitatively, the interchange Na-K is the most significant.

K+ follows a concentration gradient, while Na+ follows an electrochemical gradient. The interchange results in an increase of positive charges in the interior of the muscular cell.

Whenever there is a sufficient number of Acetylcholine receptors are active, the depolarization threshold of the motor endplate is exceeded. This activates an action potential that extends to the rest of the muscle membrane.

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2 years ago
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