What is the function of folds and villi

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

Gregor mendel is best known for his work with pea plants and for uncover many of the mysteries of genetics. one of his major findings stated that there were specific, physical units of inheritance that are transmitted during reproduction. what is the the name given to these units of inheritance which can be found on chromosomes? a) centromeres b) cytoplasm c) genes d) nucleotides

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic