This image depicts Volvox aureus, a green algae. This species exists only as a colony and is a member of which supergroup?
a. Rhizaria
b. Amoebozoa
c. Archaeplastida
d. Excavata
c. Archaeplastida
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Which of the following statements regarding polarity in an egg is INCORRECT?
a. The animal pole forms the anterior end of the animal. b. The vegetal pole forms the posterior end of the animal. c. The animal pole forms the animal's gut. d. The vegetal pole forms internal structures. e. Polarity relates to development of body axes.
Grafting is used to grow all varieties of edible apples. What does grafting involve?
a. repairing a damaged stem of a plant to continue its growth b. inducing polyploidy in plants c. growing new roots and shoots from extensions of a parent plant d. inducing a cutting from one plant to fuse with the tissues of another plant e. artificially inducing individual cells to divide and form an embryo
The scientist(s) given credit for adding the third component (which contradicted spontaneous generation) to the cell theory is/are
A. Louis Pasteur. B. Mathias Schleiden and Theodore Schwann. C. Robert Hooke. D. Rudolf Virchow. E. Antony van Leeuwenhoek.
If the source patient's blood tests positive for HIV:
A) the exposed individual will receive a one-time injection of immune globulin and will be tested for HIV in 2 weeks. B) the blood will be assessed for viral load and the exposed individual may be offered a 4-week trial of antiretroviral therapy. C) the most rapid method for determining if the exposed individual was infected is by assessing his or her lymphocyte count. D) federal law requires that the exposed individual be placed on antiretroviral therapy and not be allowed to work in a health care setting.