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.
The small intestine has cilia to absorb nutrients and reabsorb water
Explanation:
Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus Rattus. Other rat genera include Neotoma (pack rats), Bandicota (bandicoot rats) and Dipodomys (kangaroo rats). Rats are typically distinguished from mice by their size.
Answer:
Malaysia is a beautiful country and rich in biodiversity of natural resources. People in Malaysia take several steps to protects its biodiversity and it is one of the beautiful tourism spot as well. If no steps are taken to protect the species, there may be following effects:
- Loss of biodiversity and species can become endangered or extinct.
- Can lead to environmental disasters due to imbalance in biodiversity.
- Habitat loss of plants and animals.
- Climate can change due to ecosystem instability.
- Tourism will reduce in Malaysia that can affect it economically as well.
<em>zygote</em> is the diploid cell that results from the fertilization between an egg and sperm
<em>sperm</em> is the male reproductive cell that is responsible for a baby to born
