Answer:
Optic Disc
Explanation:
Optic Disc is a portion of the eye, it can be seen as black spot on the eye, it doesn't contain rods. Optic disc is the point of exit for optic nerve.
The optic disc is also known as the optic nerve Head, it is made up of connective and elastic tissue, it is the passage to the nerve fibber bundles and retinal blood vessels it also maintain intra-ocular pressure against a gradient between the intra-ocular and extra-ocular spaces.
RNA polymerase is guided to the correct place.
Answer:
El primero,conocido también Como teoría
del conocimiento, tien como objeto de estudio"la determinaciòn de LA naturaleza alcance y validez del conocimiento humano" ( Otero y Gilbert 2016:89 )y el segundo, la ética , es "la rama de la filosofía que tiene por objeto de estudio la naturaleza moral de los actos humanos .
Answer:
D. Na has one fewer valence electron than Ca.
Explanation:
Elements in different groups has been grouper based on the number of valence electrons they possess. Valence electrons refers to the electrons at the outermost part of the shell of an atomic element.
Sodium (Na) belongs to group 1 on the periodic table meaning that it has one number of valence electrons while Calcium (Ca) belongs to group 2 meaning that it has two number of valence electrons. Hence, Na has one fewer valence electron than Ca.
The answer is (b.) Fine Pebbles have a higher threshold velocity than sand.
Given the fact that fine pebbles' diameter size are usually 2.0 to 5.0 mm which is bigger compared to sands which diameter is usually measure only at 0.05 to 2.0 mm, thus fine pebbles have higher threshold velocity than sand. In Geophysics, threshold velocity refers to the minimum velocity of a particle such as pebbles and sand to move by the cause of wind or water. Therefore, the higher threshold velocity is the fine pebble since it is bigger.
