1. What percentage of trees are found in the taiga & how much
oxygen do they help replace?

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

This is a scaffolding of protein fibers that us sell keep it shape in a cell division and cell movement