Option A. Increases and decreases of the heart rate result from changes in the activity of the <u>medulla oblongata</u>
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What is medulla oblongata ?
- Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem.
- The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
- The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration
- The medulla is divided into two main parts: the ventral medulla (the frontal portion) and the dorsal medulla (the rear portion; also known as the tegmentum).
- The ventral medulla contains a pair of triangular structures called pyramids, within which lie the pyramidal tracts.
- The pyramidal tracts are made up of the corticospinal tract (running from the cerebral cortex to the spinal cord) and the corticobulbar tract (running from the motor cortex of the frontal lobe to the cranial nerves in the brainstem)
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Answer;
ATP.
The generation of ATP occurs by Chemiosmosis.
Explanation;
In the electron transport chain, hydrogen ions in the matrix space can only pass through the inner mitochondrial membrane through a membrane protein called ATP synthase.
As these protons move through ATP synthase, ADP is turned into ATP.
The production of ATP using the process of chemiosmosis in mitochondria is called oxidative phosphorylation.
0% according to the Punnett square I came out with, when you cross Yy with uu, you get 50% Yu and 50% yu
“A daughter looks different
from both her mother and her father” best illustrates the result of the
process of meiosis.
Meiosis<span> is a type of cell division that reduces the
number of chromosomes in the parent cell by half and produces four gamete
cells. This process is required to produce egg and sperm cells for sexual
reproduction.</span>
The correct answer between all the choices given is the
second choice or letter B. I am hoping that this answer has satisfied your
query and it will be able to help you in your endeavor, and if you would like,
feel free to ask another question.
Answer:
the correct answer is the second option
