Use what you know about natural selection to fill in the blanks in the hypothesis. it should answer the lab question, “what is the effect of the type of food available on the frequency of different types of bird beaks? ”

hypothesis: if the type of food available changes, then…

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