1. Menstruation phase happens when _____________.
A. the ovary releases an egg.
B. the egg cell and sperm cell unite.
C. the uterine lining begins to break down and bleeding results.
D. the endometrium becomes thicker in preparation for egg implantation.
2.Most plants grow by cutting the _______ of the parent plant and then
replanting it to grow.
A. leaves B. roots C. skin D. stems
3.How does an estuarine ecosystem affect to both abiotic and biotic factors?
A. Estuary can support variety of marine life.
B. Estuary serves as breeding place of biotic factors with the interaction of
abiotic factors.
C. Estuary transports and traps nutrients and sediments through the
combined action of fresh water flow, wind, and tidal action.
D. All of these mentioned are true.
4.If you want to protect and conserve estuaries and intertidal zones, which
situation are you going to follow?
A. Charles crushed the shells of some marine animals.
B. Jessel just left their empty food packs on the seashore.
C. Kate throws her food containers to the sea while riding the boat.
D. After swimming, Allyson and her friends pick up plastic waste found in
the shoreline.