Which of the following is the basis for one concern regarding the broad planting of BT-toxic crops? BT-modified crops may kill pollinators, reducing crop fertility in seed and fruit crops

pollinating species will come to prefer BT-modified crops, and will leave non-GMO crops unfertilized

species of beneficial pollinators will develop a natural immunity to the BT toxins

exposure to BT may turn insects into super insects, resulting in things like BT-toxic bee stings

ans.

in united states (us), the first leading cause of death for both women and men is heart diseases that leads to more than half of the deaths. heart diseases develop due to narrow arteries, buildup of plaque in blood capillaries that arises difficulties in blood flow.

the second leading cause of deaths in us is cancer that affects individuals of all ages. it develops due to uncontrolled growth and spread of tumor cells, which results in death if the not controlled or treated.

the third leading cause of deaths in us is copd or chronic obstructive pulmonary disease. it includes difficulty in breathing, chest infections, and persistent cough. smocking is a leading cause of copd and around 80% of copd deaths occur due to smoking.

thus, the correct answer is 'option). cancer, copd, and heart disease.'