In 1665, ________ used a microscope that he had built to examine thin slices of ________. While examining this material, he observed tiny compartments that he called cellulae.
A) Theodor Schwann; animal tissue
B) Robert Hooke; cork
C) Antonie van Leeuwenhoek; sperm cells
D) Robert Brown; plant material
E) Rudolf Virchow; collagen
B) Robert Hooke; cork
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A population is correctly defined as having which of the following characteristics?
I) inhabiting the same general area II) belonging to the same species III) possessing a constant and uniform density and dispersion A) I only B) III only C) I and II only D) II and III only E) I, II, and III
Which of the following is not bilaterally symmetric?
a. turbellarian b. lamp shell c. ribbon worm d. phoronid e. comb jelly
Which of the following is an inflammatory disorder that affects the eyes, skin, liver and intestines?
a. GERD b. hepatitis c. diarrhea d. Crohn’s disease e. diverticulitis
Dietary fiber
a. raises blood cholesterol levels. b. speeds up transit time for food through the digestive tract. c. causes diverticulosis. d. causes constipation.