Help someone with number 4 :3

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Any sound above what db can cause hearing loss in human beings

2. sketch the inside of the bean nodule, and describe or label what you observed with the hand lens.