In which type of tissue are cells and fibers widely scattered though a gel-like matrix?
A. Adipose tissue
B. Bone tissue
C. Dense connective tissue
D. Loose connective tissue
E. Muscle tissue
Answer: D
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In any experiment, changes to the dependent variable based on the manipulations of the independent variable are
measured. When determining the action spectrum of a given plant, what is the independent variable and what is the dependent variable?
a. independent = absorption of light; dependent = wavelength b. independent = wavelength; dependent = absorption of light c. independent = rate of O2 release in photosynthesis; dependent = absorption of light d. independent = wavelength; dependent = rate of O2 release in photosynthesis e. independent = rate of O2 release in photosynthesis; dependent = wavelength
Most seagrasses add nutrients into the marine food chain via
a. DOM. b. detritus. c. herbivory. d. marine geese. e. mucus.
Inside each leaf vein, ____ transports water and dissolved mineral ions to photosynthetic cells, while ____ transports products of photosynthesis (sugars) away from them
a. xylem; phloem b. phloem; xylem c. parenchyma cells; sclerenchyma cells d. sclerenchyma cells; parenchyma cells e. vessel elements; sieve elements
Which of the following statements about fish gills is true?
A) They have a large surface area. B) Because of their efficiency, they only need a small surface area. C) They have a poor blood supply. D) Like lungs, they have an exhale/inhale function.