Who was the first to observe and describe cells, by noting that the cells in a wine cork resembles the living quarters of monks or prisoners? a) robert hooke b) gregor mendel c) theodor schleiden d) anton von leeuwenhoek

Which of these statements is false? a. others may notice a problem with a relationship before the people involved. b. the first sign of a problem with a relationship is a feeling of anger. c. damaged relationships can be repaired. d. even good relationships can be damaged.

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

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