1 point In the 1830's Theodor Schwann showed that the mature tissues of animals
were traceable to embryonic cells. Which of the following statements of
cell theory does this provide evidence for? *
All living things are made of cells
Cells are the basic units of structure and function in living things
All cells come from pre-existing cells
O Each cell has a specific design and purpose

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed

Which of the following is a responsibility of a scientist

Asample of soil from a c horizon is light brown in color and has a high content of a mineral called feldspar. which of the following statements is most likely true