64
THe bicuspid valve is located between the
- A. left auricle and left ventricle
- B. aorta and left ventricle
- C. superior vena cava and inferior vena cava
- D. right auricle and superior vena cava
- E. right auricle and right ventricle
65
Double fertilization is said to occur in flowering pants because?
- A. two embryos are formed
- B. one egg is fertilized twice
- C. two sperms fertilize each egg
- D. one embryo and endosperm nucleus are formed
- E. two sperms and two pollen grains are involved
66
The ability of organisms to maintain a constant internal environment is known as
- A. diuresis
- B. endosmosis
- C. plasmolysis
- D. dialysis
- E. homeostasis
67
This stage of mitosis is characterized by the
- A. movement of the chromosome to the poles
- B. arrangement of chromosomes on the equitorial planes
- C. centromeres moving apart along the spindle
- D. interaction of the spindles with the chromosomes
- E. condensation of chromosomes and formation of spindles
68
what stage mitotic division is represented in the diagram of the cell illustrated above
- A. Prophase
- B. Telophase
- C. Anaphase
- D. Metaphase
- E. Interphase