Answer:
d. malleus > incus > stapes > oval window
Explanation:
Sound waves enter external auditory canal which makes the eardrum to vibrate. Malleus is in contact with eardrum while stapes is in contact with the oval window. Movement of malleus makes the incus to move which in turn stimulates large movement in stapes.
Since stapes is in contact with the oval window, the vibration from stapes passes to the oval window. Hence, among the given options, the correct order of movement of sound waves is "malleus > incus > stapes > oval window"
.
Answer:
It will remain the same over years
Explanation:
This is your answer
Chinese hamster ovary cell production of recombinant tissue‐type plasminogen activator (t‐PA) was increased by amplification of cotransfected dihydrofolate reeducates cDNA using stepwise adaptation to increasing methotrexate (MTX) concentrations. The highest producing clones were isolated at 5 μM MTX and yielded 26,000 U/106 cells/day t‐PA (43 μg/106 cells/day). Above 25 μM MTX, cell specific t‐PA production rates became increasingly variable and the cDNA copynumbers decreased. No apparent correlation between the cell specific t‐PA production rate and the growth rate was observed upon sub cloning of the amplified cells. When MTX selection was removed, the t‐PA production rate decreased up to tenfold within 40 days; this was accompanied by an up to 60% drop in cDNA copynumber. Subclones isolated after 108 days of culture in the absence of MTX were, on average, sixfold more stable than their parental cells. In culture without MTX, the maximum stable t‐PA production rate obtained (over 250 days) was 7000 ± 750 U/106cells/day (∼12 μg/106 cells/day), approximately threefold lower than the maximum unstable levels of production reached under selective pressure. Taken together, these results define a wide range of the highest t‐PA expression rates obtained under MTX selection, for which stable expression without selection has not been reported
Answer:
A. Synapomorphies identify monophyletic clades.
Explanation:
Synapomorphy is a shared trait or character derived during evolution, that is commonly found between two or more taxonomic groups or descendants of the same ancestor. Synapomorphy differentiates a clade or monophyletic group from other organisms.
Synapomorphy helps with provide evidences common to an ancestry and also helps to identify clades and monophyletic groupings, such as the ancestral relationships highlighted in a cladogram.
An example of a Synapomorphy is the skeleton in gorilla and humans.
<span>If Armand
has been in several fierce battles during the war, and suddenly awakens on the
morning of a planned invasion with complete blindness for which the doctors
find no medical cause. The doctors would suspect that Armand has a CONVERSION
DISORDER. More so, that he has an unconcerned disposition towards the sudden
blindness.</span>