Answer:
The correct option is d) head.
Explanation:
Bicoid protein works as a transcription factor. It enters the nuclei of the embryos in early segmentation, where it activates the hunchback gene. In Drosophila, embryonic development begins at the time of fertilization. The sperm enters the mature oocyte through the micropile, a structure located in what will be the anterior region of the egg. Bicoid and hunchback mRNAs, protein products are critical for the formation of the head and thorax. Already in the early stages of oocyte development, certain mRNAs are located in specific regions of the oocyte: mRNA molecules encoding the Bicoid protein are preferentially located in the anterior region of the oocyte. Moderate levels of the bicoid protein are necessary to activate the formation of the thorax (i.e., the expression of the hunchback gene) but the formation of the head requires high concentrations of Bicoid, the promoters of a specific gap gene of the head must have sites of low affinity binding for Bicoid, so that this gene can be activated only in extremely high concentrations of Bicoid.
The lack of Bicoid protein affects the formation of the head and other structures in the anterior region of the oocyte.
Answer is
body-brain barrier.
Explanation:
Mannitol injection is used to reduce swelling ande pressure around the brain.
It enhances flow of water from tissues including cerebrospinal fluid and the brain into plasma and interstitial fluid.
When the nurse has observed of a patient who runs a ventricular
tachycardia, it would likely show that their no presence of P waves, there is a
wide QRS complex in the monitor and the rate would range between 100 to 250, if
all manifest this in the monitor, it is likely that the patient has ventricular
tachycardia. The medication that the nurse should give to the client who has
exhibit this should have an anti-dysrhythmic drugs, that is important in the
first line of treatment. Drugs of these kind include, lidocaine, procainamide
and even amiodarone. If there is a need to correct the rhythm, it is likely
that cardioversion is given as a treatment.
Answer:
Right Atrium
Explanation:
ion really know but sounds like a
Right Atrium/Heart typo answer
Answer:
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
