Which of the following contains a copy of the chromosome, along with a small amount of dehydrated cytoplasm, within a tough wall?

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#Question id: 8928

#9. Diversity of Life Forms

An adult animal that possesses bilateral symmetry is most certainly also

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#Question id: 8930

#9. Diversity of Life Forms

Soon after the coelom begins to form, a researcher injects a dye into the coelom of a deuterostome embryo. Initially, the dye should be able to flow directly into the

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#Question id: 8932

#9. Diversity of Life Forms

What is the correct sequence of the following four events during an animalʹs development?

1. gastrulation

2. metamorphosis

3. fertilization

4. cleavage

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#Question id: 8933

#9. Diversity of Life Forms

At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?

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#Question id: 8934

#9. Diversity of Life Forms

At which developmental stage should one be able to first distinguish a protostome embryo from a deuterostome embryo?

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#Question id: 8935

#9. Diversity of Life Forms

What may have occurred to prevent species that are of the same grade from also belonging to the same clade?