Which of the following statements is NOT true?
a. The Amoeba is capable of responding to light.
b. The surface of rhabdomeric photoreceptors consists of parallel microvilli.
c. Due to the size of their visual field, pinhole eyes do not form images.
d. Recognition of predator-prey movement requires a visual system that permits the formation of an image.
e. Butterflies sense light with their genitalia.
C
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When biological molecules engage in condensation, such reactions are _________ reactions
?A. synthesis ?B. hydrolysis ?C. catabolic ?D. amphipathic ?E. ergonomic
The larger arteries assist with systemic blood flow to tissues by
a. contracting their endothelial layer b. using valves to propel the blood c. providing blood directly to large veins d. elastic recoil of their walls e. continuous vasoconstriction
The central canal of an osteon usually runs parallel to the surface of a bone.
a. true b. false
________ are secreted by cells infected with viruses, alerting neighboring cells and protecting them from becoming infected.
A. Interferons B. Granzymes C. Complement system globulins D. Pyrogens E. Perforins