The shoes traveled faster than the rubber ducks and bath toys. propose a hypothesis to explain why the shoes traveled faster, and develop a plan to test your prediction.

What did hunter gathers do to alter the environment?

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

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture