Answer:
Produced by the choroid plexus -T.This is the major secretion site.It is also produced in smaller quantities in the interstitial compartment.
Blocks blood toxins from brain tissue-F, that is the job of the blood brain barrier(BBB).
Supplies oxygen to the brain tissue-T.This gas is dissolved in the CSF together with CO2 for distribution among nervous tissues by the CSF
Maintains the concentration of glycine surrounding the brain-T
Found in the ventricles of the heart and brain-False,it does not reach the heart ventricles.This are occupied by blood.
Prevents concussions-T
Produces antibodies in response to antigen exposure in the brain tissue-False.These are produced by the B-cells, not by in the CSF,based on the specif antigen stimulation.
Effectively decreases the brain's weight-T It reduces the weight of the brain.This is done by the buoyancy it provided for the brain.
Compared to levels in the blood plasma, the CSF is higher in glucose-F.This is wrong, the glucose of the blood plasma is higher.But equal sodium ion,more chloride in CSF, and less protein.It s levels is a relefection of blood glucose.Although it may lag 2-4hrs in the CSF.
It prevents concussion,(T)and and the contraction of cardiac muscles propels its movement(T).
Explanation:
Answer:
meiosis I
Explanation:
Reduction of the number of sets of chromosomes occurs during meiosis I.
During Meiosis I crossing over of genetic material occurs between chromosome pairs
Invertebrate, b/c it doesn't have a spine of any kind
The order of the vessels in which the blood will pass through is
right internal jugural vein
right brachiocephalic vein
superior vena cava
cavernous sinus
aorta
brachiocephalic trunk
cebebral arterial circle
right common carotid artery
The blood flows through the veins, the heart, and the arteries.
Salmon are predators to shrimp.
This makes sense because a predator is an animal that hunts another animal to survive. Since salmon feed on shrimp, they must be a predator.
Additionally, we can eliminate the other possibilities by process of elimination:
-B is incorrect as a parasite is an organism that lives inside of another organism. Since salmon do not live inside of shrimp, this doesn't make sense.
-C is incorrect because a host is an organism that a parasite lives inside of. Since shrimp do not live inside of salmon, this also can be removed.
-D is incorrect because prey is an animal that is eaten by another animal. Since shrimp to not eat salmon, this can also be eliminated.
Therefore, A is our answer.
Hope this helps! :)
