Answer: Layers of the Epidermis. The epidermis is the outermost layer of our skin. It is the layer we see with our eyes. It contains no blood supply of its own—which is why you can shave your skin and not cause any bleeding despite losing many cells in the process.
Horses in the old times were smaller because of the softer grass to step on in the forests. However, as time passes, the living shifted to survival from the predators. This strengthens the limbs of horses and lifting the body from the ground in the process of running at great speeds. The answer here is D. <span>larger horses had longer legs and could run faster to escape predators.</span>
The expected reference range when obtaining oxygen
saturation level is 95%-100%.
The four reasons as to why the reference range may be lower
is due to the following;
-
Pulmonary edema
-
Person with history of COPD
-
Asthma and Emphysema
-
Pneumonia
Answer: Option B.
B. The chromaphore retinal absorbs a photon of light, causing a double bond in retinal to isomerize from trans to cis configuration.
Explanation:
Bacteriorhodopsin is a protein used by archaea or half bacteria that pumps proton across membrane by using the light energy from sun to move protons across membrane. It is found in purple membrane of archaea cells which is known as two dimensional crystalline patches.
It captures photon energy through chromophore retina which is covalently bound and transporting the photons against their electrochemical gradients from the cytoplasm to the extracellular space.
