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4 years ago

What does it mean when molecule is said to be polar

Biology

1 answer:

Stels [109]4 years ago

5 0

It means that it has an unevenly distributed electrical charge.

hope this helps :)

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In synaptic transmission, several neurotransmitters are released from the sending neuron and some of these are captured by the r

babymother [125]

The receptor that are receiving persistent neurotransmitters will be in a continuous state of excitation which can be harmful.

<h3>What are neurotransmitters?</h3>

The chemical substances that is mandatory for the transmission of signals in the body is referred to as neurotransmitters.

Any remaining neurotransmitter is subsequently destroyed or reabsorbed into the transmitting neuron.

The receptor that are receiving persistent neurotransmitters will be in a continuous state of excitation which can be harmful.

Thus, it is necessary that the neurotransmitters gets reabsorbed if in excess.

For more details regarding neurotransmitters, visit:

brainly.com/question/9556454

#SPJ1

3 0

3 years ago

What are the four factors that must be present for natural<br> selection to act upon a population?

mr Goodwill [35]

Answer:

im not sure what your questions is about it could be

1) mutation, gene flow, genetic drift, and natural selection

2)reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.

Explanation:

7 0

4 years ago

Select one organism from above and describe how it functions in the energy pyramid

AURORKA [14]

Snake goes to frog frog goes to bug bug goes to leaf and leaf goes to soil

8 0

3 years ago

Select the best discriptiom for each cycle:

Ede4ka [16]

Is there an image here?

5 0

3 years ago

A certain first-order reaction a â†’ b is 25% complete in 42 min at 25Â°c. What is the half-life of the reaction?

yan [13]

Answer:

$t_{\frac{1}{2}} = 101.16$ minutes

Explanation:

For a First order reaction, the rate constant is determined by

$k = \frac{2.303}{t} log \frac{a}{a-x}$

Where

k= rate constant

t= time required for a reaction

a= initial concentration

x= amount of reactant decomposed in time t

a-x= amount of reactant left after time t

Let the initial concentration be $100$

Then

$x = 25\\a-x = 75$

Substituting the given values in above equation, we get -

$k = \frac{2.303}{42} log \frac{100}{75} \\$

$k = 6.85 *10^{-3}$

Also,

$k = \frac{0.693}{t_{\frac{1}{2}} } \\t_{\frac{1}{2}} = \frac{0.693}{6.85 *10^{-3}}\\$

$t_{\frac{1}{2}} = 101.16$ minutes

Read more on Brainly.in - https://brainly.in/question/6804668#readmore

7 0

4 years ago