How does the decrease in biodiversity impact an ecosystem?

Free brainliest! what is a characteistic of the american stradfordshire?

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.