What protects many types of seaweed from desiccation?
a. Cuticle
b. Stipe
c. Mucilage
d. Thallus
c
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The skeletal muscle that flexes (bends) the forearm after pronation (palm down position as in a pull-up) is the brachialis. Its origin is the humerus, and the insertion is the upper front of the ulna. Identify the class of lever involved and explain why you made this choice.
What will be an ideal response?
Which of the following is NOT an outcome of neurulation?
A. establishment of cells that will form future pigment cells and certain facial bones B. establishment of the central nervous system C. establishment of the neural crest D. establishment of the archenteron E. establishment of somites
The most fundamental and important molecule that distinguishes living systems from nonliving matter
is ____.
a. DNA b. deoxyribonucleic acid c. glucose d. fructose e. a and b only
Each tier of the biomass pyramid depicts the
__________ of all the organisms in an ecosystem. a. size b. number of species c. dry weight d. total weight e. total utilization of materials