Why does a flower have to be open for pollination to occur? A. To expose the pistil
B. To expose the roots
C. To expose the sepals
D. To expose the leaves

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million