A DNA ladder has known base pair (bp) lengths that can be used to estimate sizes of bands of interest. Based on this DNA ladder , what range of bp lengths would you expect each of the four bands in the baby sample to be within ? Explain

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.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Some plants release toxic chemicals that kill or harm nearby plants. what type of example is this? 1 cooperation 2.mutualism 3.competition or 4.parasitism