What is endosperm? what is endosperm? the female portion of a flowering plant the male portion of a flowering plant the leaves that are a part of the embryo tissue that develops into a protective seed coat surrounding the embryo via cotyledons, a source of food for the embryo?

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.