Triploblastic are animals that:
A. form three separate blastulas from a single embryo
B. produce three eggs, each of which forms a single blastula
C. form three blastopores in each blastula
D. have a blastula composed of three cells
E. have three germ layers
E. have three germ layers
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Myeloid stem cells give rise to all formed elements in the blood EXCEPT
A. lymphocytes. B. erythrocytes. C. basophils. D. monocytes. E. platelets.
Foraging behaviors are those having to do with which of the following? (Check all that apply.)
_____ how an animal avoids becoming the prey of a larger predator _____ how an animal finds its food _____ how much food an animal eats _____ what an animal eats _____ when an animal eats
Which of the following is not one of the starting materials of the citric acid?
a. FAD b. NAD+ c. acetyl CoA d. ATP e. H2O
Archaea often live in nutrient-poor environments. In order to ensure survival, they must ________.
A. accumulate nutrients inside the cell at higher concentrations than the external environment, which requires active transport mechanisms B. develop metabolic pathways to synthesize their own nutrients using cytoplasmic molecules C. acquire nutrients inside the cell at lower concentrations than the external environment, which requires passive transport mechanisms D. transport nutrients to the outside of the cell by facilitated diffusion