<span>The metabolic activity of a specific region of the living rat brain can be revealed by measurement of Fos protein concentration.
c-Fos is a proto-oncogene that is the homolog of the retroviral oncogene v-fos. It was first discovered in rat fibroblasts as the transforming gene of the FBJ MSV.</span>
Answer:
is b b/se the reason is ATP
1.
Identify the type of precipitation that is not one of the main categories.
snow
sleet
<em>drizzle</em> ✓
hail
- It's a a mild fall of drops condensed hence , it's not a main category
- The four main categories are snow ,rain ,sleet & hail
2.
Which device is used to measure rainfall?
measuring stick
rain gauge ✓
rain meter
rain stick
- It calculates the precepated rain in a time period per unit area
3.
Which device is used to measure snow?
rain gauge
measuring stick ✓
measuring gauge
rain meter
- A simple measuring stick can measure the thickness of snow
Answer:
1) A
2) Could be A, B, or D
Explanation:
1) Prokaryote is a single celled organism that has no distinct nucleus, membrane - bound organelles, and specialized organelles (such as the mitochondria).
This definition would only match A) a bacteria cell because all the other cells are called Eukaryotas (which are more complex and have membrane - bound organelles).
2) The answer could be A because Prokaryotic cells lack membrane bound organelles
The answer could be B because the diagram has labeled the cell membrane as "plasma membrane"
The answer could NOT be C because Prokaryotic cells do not have nucleus's, but have free floating DNA.
The answer could be D because it is the only image that has a flagellum (which helps the cell move)
I am sorry I couldn't answer this question completely, but I think that this question has flaws.
Hope this helps! Let me know if you have any other questions!
Answer: Interventricular foramen
Explanation:
<u>The cerebrospinal fluid is a fluid that covers the brain and spinal cord. It circulates through the subarachnoid space, the cerebral ventricles and the ependymal canal</u>. Several diseases alter its composition and its study usually detects meningeal infections, carcinomatosis and hemorrhages. Some of its functions are:
- Hydropneumatic support against local pressure for the encephalon.
- Eliminates metabolites from the central nervous system.
- Protects the central nervous system from trauma.
This fluid also fills the ventricles, which are large open structures deep within the brain and help keep the brain buoyant and cushioned. The lateral ventricles are the largest ventricles and connect to the third ventricle through the intraventricular foramen. This third ventricle is a narrow, medial cavity located between the diencephalic masses. <u>Then, the interventricular foramina are channels that connect with the ventricles of the lateral walls and with the third ventricle</u>, at the level of the midline of the brain. Like these channels, they allow cerebrospinal fluid to circulate through the rest of the ventricular system of the brain. The walls of the foramina also contain choroid plexuses, responsible for the production of cerebrospinal fluid, which continue in both the lateral ventricles and the third ventricle. After reaching the third ventricle, the cerebrospinal fluid travels through the median aperture into the subarachnoid space at the base of the brain.
