Blood flows to the brain through the internal carotid and vertebral arteries and away from the brain through the internal jugular vein. The internal carotid artery supplies the brain, while the external carotid nourishes other portions of the head, such as the face, skull, scalp and the meninges. The vertebral arteries provide supply to the upper spinal cord, brainstem, cerebellum, and the posterior part of the brain.
Hi!
The correct answer would be A.
<h3>Explanation:</h3>
As the allele P for polka dot is dominant to the allele p for solid color, it would yield a Polka dot tail in the individual in the presence of just one allele of P, while masking the effect of p for solid color.
So the possible genotypes and phenotypes would be as follows:
- PP (Polka dot tail)
- Pp (Polka dot tail)
- pP (Polka dot tail)
- pp (Solid color tail)
Following a cross by two heterozygous individuals, there would be 25 percent chance (1/4) of having the genotype pp , 25 percent (1/4) chance of having the genotype PP and 50 percent (2/4) chance of having the genotype Pp.
But the phenotype yielded by Pp and PP offspring would be polka dots, so there is a 75 percent (3/4) chance of having polka dot offspring, and 25 percent chance of having solid colored tail offspring.
<h3>Hope this helps!</h3>
Answer:
Option C. Peripheral nervous system
Explanation:
The Parkinson's disease is a disorder that directly affects the nerve cells of the body. The neurons that produces dopamine dies in this disorder that produces symptoms like slowness, balancing problem and stiffness.
The Peripheral nervous system connects the CNS to body limbs and organs. The information is transferred from the brain and spinal cord to other body parts that helps to react with external stimulus.
In Parkinson's disease, the transfer of motor signals to muscles is prevented by inhibiting parts of peripheral nervous system. Thus, option C is correct.
Answer: Where it gets food.
Explanation: There is multiple tropic levels btw
Glycogen is the form of energy in which nutrients are stored in the body. It is a polysaccharide of glucose and is stored mainly in the liver, and muscles. It makes 5-6 percent of the liver's fresh weight.
