Both echinoderms and chordates are deuterostomes. This means that
What will be an ideal response?
they have a similar development in their embryonic stages.
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The formation and breaking of bonds between atoms requires ____
a. a chemical reaction b. van der Walls forces c. partial charges d. an empty valence shell e. an enzyme
Almost immediately after a young leaf primordium first begins to bulge out ____
a. undifferentiated vascular tissues that will later become xylem and phloem penetrate it b. small xylem vessels penetrate it first, followed soon after by phloem c. small phloem vessels penetrate it first, followed soon after by xylem d. small xylem and phloem vessels penetrate it together e. specialized vascular tissue cells penetrate and soon differentiate into phloem or xylem vessels
How many ATP molecules (net yield) are produced per molecule of glucose during glycolysis?
a. 1 b. 2 c. 4 d. 36 e. 38
Altruistic behaviors between closely related animals
A. increase the inclusive fitness of the altruist. B. increase the life-time reproductive success of the altruist. C. reduce fighting between species. D. force individuals to cooperate with one another and thereby increase mating and population growth.