Barnacles such as Balanus are most common in the ____ zone of the rocky intertidal
a. upper midlittoral
b. middle midlittoral
c. lower midlittoral
d. subtidal
e. splash
A
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A terrestrial animal species is discovered with the following larval characteristics: exoskeleton, system of tubes for gas exchange, and modified segmentation. A knowledgeable zoologist should predict that the adults of this species would also feature ___
A) eight legs B) two pairs of antennae C) a sessile lifestyle D) an open circulatory system E) parapodia
Which event and date is mismatched?
A. origin of eukaryotic cells-2.2 billion years ago B. origin of life-4.8 billion years ago C. origin of multicellular organisms-650 million years ago D. All the choices are incorrect.
What do all protists possess?
a. cell walls b. multiple, circular chromosomes c. chloroplasts d. microtubules and microfilaments
When a phosphate group is removed from an ATP molecule, energy is released.
a. true b. false