I would say immigration only.
emigration would theoretically reduce the genetic variation as unique individuals leave, but immigration would bring unique traits into circulation in an ecosystem.
I'm not super great at biogy tho so this might not be right... :)
All three domains include unicellular organisms, archaea, bacteria, and eukarya.
Answer:
1) IRIS
2) LENS
3) RETINA
4) Fovea Centralis
Note: Answers 1 - 4 follows question pattern
Explanation:
The PUPIL is the hole in the MIDDLE of the IRIS of the eye, through which light passes to be focused on the RETINA.
The IRIS is the contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye
ACCOMMODATION is the change in the adjustment of the eye lens to help focus light ray.
RETINA helps to receive light rays that the lens has focused. It contains two cells: rods and cones
Fovea Centralis is at the center of the retina responsible for sharp and accurate vision, also it is where cones cells cluster.
Every time scientists make a new discovery, they add that knowledge and correct their older discoveries accordingly.
The clinical findings that correlate with M.K's chronic bronchitis involve abnormal arterial blood gases as specified by the partial pressure of carbon dioxide of 52 mmHg. It is because of the lack of gaseous exchange in the lungs, the carbon dioxide gathers in blood above the normal ranges of 38-42 mmHg. A Cough is the most commonly observed symptom.