Enzymes that digest carbohydrates include ________.

A) peptidases
B) amylase, maltase, and sucrase
C) lipase
D) maltase and lipase
E) trypsin and chymotrypsin

Ruminants' stomachs have microbes to digest ____.

A) starch
B) proteins
C) cellulose
D) lignin
E) lipids

Which of the following is determined by the sequence of amino acids bound by peptide bonds?

A) Amino acid
B) Peptide bond
C) Primary structure of protein
D) Secondary structure of protein
E) Denaturation

Four of the five answers listed below are events that can lead to secondary succession. Select the exception.

A) a mudslide that destroys a section of a shrubland
B) torn down buildings leading to vacant lots
C) retreat of a glacier in Alaska
D) a fire
E) hurricane-damaged coastal marshes

Auditory tube

A) Structures that produce earwax
B) Fluid in the membranous labyrinth
C) Fluid between the membranous and bony labyrinth
D) Ossicles connect this structure to eardrum
E) Connects the middle ear to the pharynx

Which of the following pairs of terms are opposites?

A) Plantar flexion - dorsiflexion
B) Abduction - extension
C) Inversion - retraction
D) Pronation - rotation
E) Elevation - protraction

Which factor is the most important algal contribution to the fungal component of lichen?

A) improved water conservation
B) mechanical protection from being blown away
C) photosynthetically derived food
D) less overlap among individual algal cells
E) pigment for camouflage