The region of a chromosome where two sister chromatids are held together is called a
A.) Spindle
B.) Centromere
C.) Nucleosome
D.) Centriole
Ans: B.) Centromere
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A rubber band that is pulled taut and a person who is standing at a bus stop are examples of which of the following?
a. Potential energy b. Activation energy c. Kinetic energy d. Free energy
The close relationship between ____ and animals can be seen in the similarity of these protists and sponges, simple
animals.
a. cellular slime molds b. choanoflagellates c. diatoms d. brown and red algae e. flagellates protozoans
Which of the following is not a stage of mitosis?
A. interphase B. metaphase C. prophase D. anaphase E. telophase
Which of these are examples of the effects of rising temperatures?
a. marmots are coming out of hibernation later in the year b. plants are blooming earlier in the year c. animals that were traditionally only found in temperate areas are being found in tropical zones d. maple trees are making more syrup than ever before e. all of the above