Answer:
D. geographic isolation.
Explanation:
As the Grand Canyon formed, it became a physical barrier to the mixing of squirrels from its northern and southern sides. Each squirrel population was confined to a single side. This type of separation is referred to as geographic isolation.
<span>The biological events that begin puberty involve a hormonal signal from the "Hypothalamus"
Hope this helps!</span>
Answer: False, and I didn't understand what you asked, rewrite it in the comment section with better grammar
Explanation:
Answer:
d. whether or not the cell is partitioned by internal membranes.
Explanation:
The prokaryotic cells are those which do not have a defined or definite nucleus because the nucleus is not bounded by the nuclear membrane. This type of nucleus is called nucleon. The prokaryotic cell also does not have membrane-bound cell organelles. Thus, the prokaryotic cell is not partitioned by internal membranes.
Whereas, a eukaryotic cell has a well-defined or definite nucleus and membrane-bound organelles such as mitochondria, chloroplasts, Golgi apparatus, endoplasmic reticulum. Thus, the eukaryotic cell is partitioned by internal membranes.
