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Ipatiy [6.2K]
3 years ago
13

There is a definite place at which the brain begins and the spinal cord ends

Biology
1 answer:
olga2289 [7]3 years ago
6 0

The answer is the spinal cord starts at the occipital bone where it passes over the foramen magnum, and encounters and go in the spinal canal at the start of the cervical vertebrae. The spinal cord encompasses down to amid the first and second lumbar vertebrae where the spinal cord ends.

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What evidence have you discovered to explain how Mendel’s experiments showed that traits in offspring are inherited?
Leto [7]

Answer:PLZ MARK ME THE BRANISET

By examining large sample sizes, Mendel showed that his crosses behaved reproducibly according to the laws of probability, and that the traits were inherited as independent events. Two rules in probability can be used to find the expected proportions of offspring of different traits from different crosses.

To find the probability of two or more independent events occurring together, apply the product rule and multiply the probabilities of the individual events. The use of the word “and” suggests the appropriate application of the product rule. To find the probability of two or more events occurring in combination, apply the sum rule and add their individual probabilities together. The use of the word “or” suggests the appropriate application of the sum rule.

THANK YOU IF LIKE MY ANSWER PLEASE DONT FORGET TO MARK ME THE BRANIEST.

4 0
2 years ago
In most vertebrate neurons, an action potential arrives at the axon terminal and causes the release of chemical messenger molecu
erik [133]

The correct answer is option d, that is, neurotransmitters.  

A neurotransmitter refers to a chemical component, which is discharged at the terminal of a nerve fiber by the introduction of a nerve impulse, and by diffusing across the junction or synapse. It helps in the transfer of the impulse to another muscle fiber, nerve fiber, or some other composition. Acetylcholine is a kind of neurotransmitter, that is, used by neurons in the CNS and the PNS in the control of activities ranging from heart rate and muscle contraction to digestion and memory.  


5 0
3 years ago
A scientist asks you for help studying fruit fly genetics. She asks you to determine the possible phenotypic ratio for two trait
Bumek [7]
When you combine the genotypes in the Punnet square you get :
1. EeRR
2.Eerr
3.EeRr
4.eerr
The ratio would be typical for a dihybrid cross: 9 of the individuals with both dominant traits, 3 of the individuals dominant for one trait, 3 dominant for the other trait and only one recessive for both traits.
There will be 9/16 of ebony flyes with red eyes
3-16 of ebony flies with orange eyes
3/16 of yellow flies with red eyes
1/16 of yellow flies with orange eyes


8 0
3 years ago
A patient has taken levodopa [Dopar] for Parkinson's disease for 2 weeks but reports no improvement in the symptoms. Which respo
Elan Coil [88]

Answer:

Option-D

Explanation:

Parkinson's diseases are a neural disorder which affects the movement of the human body. The disease is caused by the low production or no production of dopamine by the neurons which thus interfere with the impulse transfer and thus movement.

In the given question, the patient with Parkinson's disease is provided with levodopa but no improvement is observed therefore the prescriber must change the drug regimen, for example, the levodopa should be given in combination with carbidopa. These medications enter the blood-brain barrier and get converted to the dopamine.

Thus, Option-D is the correct answer.

8 0
3 years ago
Solve equation <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%3D2" id="TexFormula1" title="\sqrt{x} =2" alt="\sqrt{x} =2" a
zhannawk [14.2K]
\sqrt{x} = 2
Step one is to square both sides
x = 4
7 0
3 years ago
Read 2 more answers
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