A protein becomes distributed in a gradient along the length of the egg. As development continues, orientation of this gradient determines which part of the embryo will become the front of the animal, and which will be the back. This is an example of ____
a. germ layer formation
b. gastrulation
c. gradient development
d. embryonic induction
e. gene expression
d
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During ____, microtubules disassemble, pulling the chromatids to the ends of the spindle
a. prophase b. interphase c. anaphase d. metaphase e. telophase
Which feature helped define the evolution of the primate lineage? a. The face became flattened and the eyes became forward facing
b. Skeletal changes allowed for upright walking. c. The hands became adapted for new tasks. d. All of these are unique features to the primate lineage. e. The teeth became less specialized.
Which process leads to a net movement of uncharged molecules from a low concentration to a higher concentration?
a. active transport b. osmosis c. facilitated diffusion d. exocytosis
Which of the following fungal infections may progress to infection of the brain?
A) Coccidioides immitis B) Cryptococcus neoformans C) Mucor D) both Coccidioides immitis and Cryptococcus neoformans E) Coccidioides immitis, Cryptococcus neoformans, and Mucor