When DNA fragments are sealed together by DNA ligase, the process is referred to as ____
a. transformation
b. gene remodeling
c. the polymerase chain reaction
d. restriction cloning
e. ligation
ANSWER: e
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Plants transport water to their leaves through the xylem when water evaporates from the leaves. The evaporating water pulls other water molecules up the xylem through ____
A. Hydrophobic interactions B. Ionic bonds C. Covalent bonds D. Hydrogen bonds
Some plants gain their nutrition by parasitizing other plants
A. true B. false
The amount of time an organism spends foraging must be balanced against other time constraints, such as defense, avoiding predators, searching for mates, or caring for young
Indicate whether the statement is true or false
The ability of the human body to maintain a relatively constant internal environment is known as ________
A) regulation B) homeostasis C) stabilization D) positive feedback