Pith is composed of . Multiple choice question. companion cells sclerenchyma cells collenchyma cells parenchyma cells

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.