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Katyanochek1 [597]
4 years ago
10

A class is designing an experiment about duckweed growing conditions. The hypothesis for the

Biology
1 answer:
iren [92.7K]4 years ago
8 0

Answer:

duckweed at pH 7

then second one is

duckweed at pH5

Explanation:

jus did it.

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Fatty acids are the building blocks of.
Genrish500 [490]

Fatty acids are building blocks of lipids. The correct option is A.

Fats and oil are known as lipids.

Lipids are part of the classes of food which are made up of high proportion of carbon and hydrogen with very little oxygen.

Fats are solids and oils are liquids at room temperature. They serve the following functions to the body:

  • They provide the body with energy
  • They are solvents for fat-soluble vitamins and hormones.

Before lipids can be absorbed into the body, they must be broken down into fatty acids and glycerol.

Therefore, fatty acids are building blocks of lipids.

Learn more here:

brainly.com/question/17352723

5 0
3 years ago
Read 2 more answers
Action potential in a motor neuron triggers the release of what neurotransmitter?
vodomira [7]

Answer:

Action potential in a motor neuron triggers the release of acetylcholine (ACh) neurotransmitter.

Explanation:

Acetylcholine: It is a neurotransmitter released by motor neurons which bind to the receptors end plates of the motor. When an action potential travel down the motor neuron's axon, neurotransmitter release occurs resulting in an influx of calcium and altered permeability of the synaptic terminal membrane.

The Ca2+ ions allow synaptic vesicles to move and bind with the presynaptic membrane which is present on the neuron and released neurotransmitter from the vesicles into the synaptic cleft. Once it's released ACh diffusion occurs across the synaptic cleft to the motor end plate, and binds with ACh receptor. As the neurotransmitter ACh binds, these ions channel open and sodium ions cross the membrane into the muscle cells.

In this phase reduction of voltage inside and outside the cell occurs, which is known as depolarization. When ACh binds to the motor end plate this depolarization is known as end plate potential. Then depolarization spread with the sarcolemma and creating an action potential. This action potential moves the entire cell and creating a wave of depolarization.

5 0
3 years ago
PLEASE HELP I feel like the answer is number 4 but im not sure.
dimulka [17.4K]
I think it is also 4
6 0
3 years ago
NEED HELP ASAP
Vladimir [108]

Answer: its CO2 for the first one

Explanation:

6 0
3 years ago
Read 2 more answers
What are the light gray lines in the graph showing? Provide examples.
BartSMP [9]

Answer:

the Grey line is the expect change and is where the temperature should be

Explanation:

the black line is where the temperature is and how much the temperature can fluctuate while still allowing the organism to live and do so comfortably

4 0
3 years ago
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