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vagabundo [1.1K]
3 years ago
7

Increasing excitatory signals above threshold levels for neural activation will not affect the intensity of an action potential.

this indicates that the reaction of a neuron is:
Biology
1 answer:
Lera25 [3.4K]3 years ago
5 0

<u>Answer</u>: an all or none response

According to the all-or-none law, it a certain threshol is crossed by a stimulus' strenght, it will cause a response in the nerve cell or muscle fiber. However, the strenght of the response will always be the same and will not vary with different stimulus strengths. The only requirement is for the threshold to be crossed.

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You are observing the reaction of a plant cell to a salt water solution using a compound light microscope. After a few minutes,
Mice21 [21]
Osmosis i believe, but it may be <span>turgor pressure 

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8 0
3 years ago
In osmosis, water molecules move with the concentration gradient, therefore no energy is used. This is an example of:
olganol [36]

Answer:

The correct option is A. Inside of cell has more salt

Explanation:

When there will be more solute inside the cell than outside of the cell, then a concentration gradient will develop due to this uneven distribution. Water will move inside of the cell through a process known as osmosis. As the water molecules are moving along the concentration gradient, no energy will be used during this process.

The mechanism of osmosis is very essential in maintaining the turgidity of a cell.

4 0
3 years ago
A cheetah, like those shown below at left, and a paramecium, like the one shown below at right, are both living things. Accordin
Natalka [10]

The correct option for this question is as follows:

a) they are made of many cells

b) they are made of one or more cells

c) they come from the same kind of cell

d) they come from noncellular structures

Answer:

The correct answer is - option b. they are made of one or more cells

Explanation:

The cell theory has three major parts that are; the cell is the basic and physiological unit of the organism, all living organisms are made up of one or more cells, new cells come from the pre-existing cells.

On the basis of the cell theory, we can say that all organisms including the cheetah that is a multicellular organism or paramecium a single-celled organism, are made up of one or more cells.

5 0
2 years ago
Question 5 (1 point) Saved
kakasveta [241]
The answer is True...
6 0
3 years ago
Llars.<br> 3. mRNA is made in the (cytoplasm/nucleus).
Eddi Din [679]

Answer:

mRNA is produced in the nucleus.

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