A large watermelon fruit is very heavy and contains nearly 90% water. Since the skin of a watermelon is thick and lacks stomata, transpiration does not "pull" water into the watermelon. So, how does all that water get into the fruit?
A. Root pressure pushes water into the watermelon.
B. Water is pumped in by active transport.
C. Water enters by osmosis from the soil.
D. Water is transported in the phloem along with the sugars while they are being translocated into the fruit.
E. Watermelons, like other fruit, contain an abundance of xylem.
Answer: D
You might also like to view...
A(n) ________ tree simply represents phylogenetic relationships but does not indicate which organisms are more primative relative to others. In contrast, a(n) ________ tree gives a node that serves as the common ancestor and shows the development of the species from this origin.
Fill in the blank(s) with the appropriate word(s).
When making a complementary DNA (cDNA) library, which enzyme is used to copy mRNA into DNA?
A) DNA ligase B) DNA polymerase C) Primase D) RNA polymerase E) Reverse transcriptase
Which paired terms are incorrectly matched?
a. classical conditioning?extinction b. habituation?relevant stimuli c. imprinting?behavioral bonding d. insight?trial and error e. operant conditioning?reward
Chromosomes that are NOT involved in determining gender are known as
a. autosomes. b. sex chromosomes. c. homologues. d. linked.