<span>jeremy's SUBSTANCIA NIGRA is producing less DOPAMINE than what it needs to.
Substancia nigra is a "black substance" located in the midbrain. When there is the death of dopaminergic neurons in the substantia nigra, the quantity of dopamine decreases, causing Parkinson symptoms. With time passing, the fewer neurons Jeramy will have and those symptoms will become more severe, that is the reason why is smoking more. The nicotine from cigarettes help modulate dopamine transmission and so, to reduce some symptoms.</span>
Answer:
The correct answer will be option- transformation.
Explanation:
The transformation is the process of the horizontal transfer of gene in which the competent cells takes the naked DNA from the environment.
This process was reported in the experiments of Griffith on Streptococcus pneumonia in 1928. The bacteria should be competent to take up the free extracellular DNA form the environment. This ability of the bacteria is used in biotechnology and molecular biology in cloning procedures and many others.
Thus, option- transformation is the correct answer.
Answer:
The reasons why Adenosine Triphosphate is a common energy source for all organisms is that: 1. It is a high-energy molecule 2. ATP has an unstable structure compared to other high-energy molecules. 3. ATP has higher potential to transfer phosphate group.
Explanation:
The transfer of phosphate group from high energy molecule like the adenosine triphosphate (ATP) usually release energy that is required by most of cellular activities, thus this dephosphorylation process is an exergonic reaction. While other molecules like the GTP can give energy, these molecules are more stable structurally and breaking them down will not by energetically wise, thus there is need to use a less stable high energy molecules like the ATP which have the potential of releasing their phosphate radical more easily. This is the reason why all organisms make use of the ATP molecule as the only energy source.
Answer: <u>Nodes of Ranvier
</u>
Explanation: The nerve cells are also termed as neurons. Their structure is quite from other kinds of cells. These consist of long and slender region called as axon, with branches at one end, called as dendrites and a head region on the other end, called as cell body. The structure is shared below.
The axon region is covered with mylein sheath, throughout the region except few gaps, which act as the points from where action potential jumps and pass from one neuron to another.
Answer:
Biodiversity is essential for the processes that support all life on Earth, including humans.
Explanation:
Biodiversity is essential for the processes that support all life on Earth, including humans. Without a wide range of animals, plants, and microorganisms, we cannot have the healthy ecosystems that we rely on to provide us with the air we breathe and the food we eat. And people also value nature of itself.
