Q: Q: Even though tellurium does indeed have a greater average atomic mass than iodine, it is properly placed before iodine in the? Read this paragraph and choose the correct option from the provided answers: When ordered by atomic number, the discrepancies within Mendeleev's table disappeared. Tellurium has an atomic number of 52, while iodine has an atomic number of 53. Even though tellurium does indeed have a greater average atomic mass than iodine, it is properly placed before iodine in the periodic table. Mendeleev and Moseley are credited with formulating the modern periodic law , which states that when elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties. We will discuss some of these chemical and physical properties later on in this chapter. The result is the periodic table as we know it today. Choices: - theory table - phases table - cycles table - periodic table A:
A: periodic table

Q: Q: What is the failure of replicated chromosomes during meiosis to separate known as? Read this paragraph and choose the correct option from the provided answers: Mistakes may occur during meiosis that result in nondisjunction . This is the failure of replicated chromosomes to separate during meiosis (the animation at the link below shows how this happens). Some of the resulting gametes will be missing a chromosome, while others will have an extra copy of the chromosome. If such gametes are fertilized and form zygotes, they usually do not survive. If they do survive, the individuals are likely to have serious genetic disorders. Table below lists several genetic disorders that are caused by abnormal numbers of chromosomes. Most chromosomal disorders involve the X chromosome. Look back at the X and Y chromosomes and you will see why. The X and Y chromosomes are very different in size, so nondisjunction of the sex chromosomes occurs relatively often. http://learn. genetics. utah. edu/content/begin/traits/predictdisorder/index. html. Choices: - pollenation - regression - separation - nondisjunction A:
A: nondisjunction

Q: Q: Wetlands are environments in which the soil is either permanently or periodically saturated with what? Read this paragraph and choose the correct option from the provided answers: Wetlands Wetlands are environments in which the soil is either permanently or periodically saturated with water. Wetlands are different from lakes and ponds because wetlands exhibit a near continuous cover of emergent vegetation. Emergent vegetation consists of wetland plants that are rooted in the soil but have portions of leaves, stems, and flowers extending above the water's surface. There are several types of wetlands including marshes, swamps, bogs, mudflats, and salt marshes (Figure 20.33). Choices: - hydrogen - oil - spores - water A:
A: water

Q: Q: Fertilization is the union of a sperm and egg, resulting in the formation of what? Read this paragraph and choose the correct option from the provided answers: Fertilization is the union of a sperm and egg, resulting in the formation of a zygote. Choices: - a cytoplasm - a nuclei - a bacteriophage - a zygote A:
A: a zygote