B. Sympatric evolution. is responsible to this. It's the process of evolving species from one shared ancestor in the same geographic region.
Answer:
the mature organism is sterile.
Explanation: just is
Answer:
D
Explanation:
A sperm having half the normal species number of chromosomes
Answer:
You could have a heart attack.
Explanation:
When plaque builds up, it narrows your coronary arteries, decreasing blood flow to your heart. Eventually, the decreased blood flow may cause chest pain (angina), shortness of breath, or other coronary artery disease signs and symptoms. A complete blockage can cause a heart attack.
