What likely happened during the intervening time?
A) The outer membrane of the nucleus broke off and moved the fluorescent tag to the Golgi.
B) The endoplasmic reticulum engulfed the tagged protein and released it in a transport vacuole.
C) Material from the nucleus, including the tag, was being secreted outside the cell.
D) The tag was seen in the Golgi before being seen in a transport vacuole.
Answer: D
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The presence of specific ________ signals that a given water source might be contaminated with pathogens
A) exotoxins B) chemical compounds C) endotoxins D) indicator microorganisms
A friend of yours is wondering about the differences between the words orientation and navigation when these two terms are used in descriptions of bird migrations. Since you have studied and know something about animal behavior, what do you tell your friend?
A. Orientation is adjusting a bearing, while navigation is actually following a bearing. B. Orientation and navigation are used interchangeably when referring to avian migrations. C. Orientation is following a bearing, while navigation is setting or adjusting a bearing. D. Orientation is following the sun in the day as starling do, while navigation is following a bearing with a small amount of magnetite, which is found in the heads of some migratory birds. E. Orientation is the ability to find true east, navigation is the ability to find a bearing while crossing water.
Which type of reproduction is most adaptive in a rapidly changing environment with many different parasitic diseases present?
A. sexual reproduction, because the diversity of genotypes increases the likelihood that there is one which can survive in a new environment B. asexual reproduction, because the currently successful genotypes can reproduce quickly C. asexual reproduction, because asexual reproduction uses less energy, which leaves more for each individual to adapt to the changing environment D. sexual reproduction, because this type of reproduction allows the production of a greater number of offspring, thus providing more individuals to take advantage of any environmental challenges presented
A ________ originates from the Golgi apparatus as one type of vesicle that contains a variety of enzymes for intracellular digestion.
Fill in the blank(s) with the appropriate word(s).