Which type of vascular tissue conducts carbohydrates?

A. sclereids
B. collenchyma cells
C. xylem
D. phloem
E. fibers


Answer: D

Biology & Microbiology

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Even though plant cell walls in the root system are rigid they are permeable to ________. a. water and sunlight b. sunlight and potassium c. They are not permeable to anything

d. water and ions e. sunlight and oxygen

Biology & Microbiology

Recall the classic experiments assessing arthropod extinction rates in moss (Figure 46.14). If corridors are eliminated between moss patches, how does this change affect the arthropods inhabiting the moss?

A. Arthropod extinction rates remain the same. B. Arthropod extinction rates decrease. C. Arthropod extinction rates increase.

Biology & Microbiology

The pollen grain is indicated by

a. A. b. B. c. C. d. D. e. E.

Biology & Microbiology

The production of large quantities of a particular DNA sequence is known as gene ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology