In a _____ circulatory system, circulation of blood is more controlled—the blood is moved faster and more efficiently than in other types of circulatory systems. Â
Fill in the blank(s) with the appropriate word(s).
closed
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How can the amebozoans, cercozoans, and radiolarians be distinguished from each other with microscopy if they all have pseudopodia?
A) Amebozoans have lobe-shaped pseudopodia, cercozoans and radiolarians both have threadlike pseudopodia, and radiolarians have radial symmetry. B) Amebozoans have lobe-shaped pseudopodia, and cercozoans are significantly smaller in size but contain threadlike pseudopodia just like radiolarians. C) Amebozoans have large pseudopodia, cercozoans have lobe-shaped pseudopodia, and radiolarians have radial threadlike pseudopodia. D) Amebozoans have multiple lobe-shaped pseudopodia, cercozoans have one or two threadlike pseudopodia, and radiolarians have multiple threadlike pseudopodia.
__________ counters the effects of mutation, natural selection, and genetic drift. Fill in the blank(s) with the appropriate word(s)
Which of the following are NOT haploid?
A. Polar bodies and secondary spermatocytes B. Primary oocytes and spermatids C. Secondary spermatocytes and spermatogonia D. Primary oocytes and spermatogonia E. Secondary spermatocytes and spermatids
Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae)
If the molecular data best reflect the evolutionary history of these two groups, then the morphological similarities of these two species is most likely due to _____. A) the inheritance of acquired characteristics B) sexual selection C) possession of analogous (convergent) traits D) possession of shared primitive characters