English holly
explanation !!!!
Ilex aquifolium, commonly called English holly, is native to Europe, western Asia and north Africa. It is an erect, pyramidal, densely-branched, evergreen tree that typically grows to 30-50' (less frequently to 80') tall. It also may be trained and grown as a large shrub (10-15' tall).
Answer:
In optics, the refractive index of a material is a dimensionless number that describes how fast light travels through the material. It is defined as n={\frac {c}{v}}, where c is the speed of light in vacuum and v is the phase velocity of light in the medium
<span>B, enzyme-linked receptor</span>
A. a piece of DNA that controls a trait
Siliceous ooze is mostly composed of the shells of diatoms (single-celled algae) and radiolarians (single-celled animals)
Answer: B).
