What correctly describes how eukaryotic chromosomes are prepared for cell division?
What will be an ideal response?
The chromosomes are replicated and compacted into chromatids
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Why do pine trees have two different types of cones?
A. One type is produced in the fall, the other type is produced in the spring. B. One type produces ovules, the other type produces pollen. C. One type produces the gametophyte, the other type produces the sporophyte. D. One type produces seeds, the other type produces fruit.
A new dicotyledon vegetable has just been imported into the United States from Ecuador. The edible portion is a succulent stem. When you eat this tasty treat you notice a flexible stringy tissue located just inside the epidermis. Even though this new vegetable is tasty, this "stringy stuff" tends to gets caught in your teeth. Discuss several plant tissues that fit the description of this "stringy
stuff." What will be an ideal response?
One hundred million sperm are produced daily in the
a. interstitial cells. b. prostate. c. seminiferous tubules. d. vas deferens. e. epididymis.
Which statement does not represent one of Darwin's observations?
A. All individuals have an equal chance to survive and reproduce. B. Changes in populations are gradual and take place over long periods of time. C. Members of the same species may exhibit considerable variation. D. Some characteristics are heritable and passed on to offspring. E. Some characteristics afford their possessor a better chance of survival.