At the tip of each branch, the ____________ cover(s) the shoot apical meristem

A. bundle sheath
B. leaf primordia
C. flower bud
D. node
E. internode


B

Biology & Microbiology

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The tree above is based on which type of traits and what is the genus name for the most recent horse?



A. Genetic (DNA): Orohippus.
B. Morphological: Equus.
C. Molecular: Equus.
D. Genetic homology: Pliohippus.
E. Morphological: Hyracotherium.

Biology & Microbiology

The term that best describes all of the chemical reactions of a cell, including acquisition and use of molecules and

energy, is ____.

a. metabolism b. anabolism c. catabolism d. energy budget e. thermodynamics

Biology & Microbiology

The osmoregulatory/excretory system of an earthworm is based on the operation of _____

A) protonephridia B) metanephridia C) Malpighian tubules D) nephrons

Biology & Microbiology

Which of the following is TRUE concerning the structure and function of enzymes?

A. All enzymes bind cofactors necessary for their function. B. An apoenzyme is a combination of a cofactor bound to a holoenzyme. C. Enzymes can function at a wide range of pH. D. Competitive inhibition of an enzyme occurs when an inhibitor binds to an allosteric site on the enzyme. E. After an enzyme has catalyzed a reaction, it resumes its original shape and can interact with a new substrate molecule.

Biology & Microbiology