Q: What is the common abbreviation for noting the rhesus blood type? Read this paragraph and choose the correct option from the provided answers: Rhesus blood type is determined by one common antigen. A person may either have the antigen (Rh + ) or lack the antigen (Rh - ). Choices: - h2 - AB - RNA - rh A:
rh

Q: Unlike other tetrapod vertebrates (reptiles, birds, and mammals), amphibians do not produce what type of eggs? Read this paragraph and choose the correct option from the provided answers: Unlike other tetrapod vertebrates (reptiles, birds, and mammals), amphibians do not produce amniotic eggs. Therefore, they must lay their eggs in water so they won't dry out. Their eggs are usually covered in a jelly-like substance, like the frog eggs shown in Figure below . The jelly helps keep the eggs moist and offers some protection from predators. Choices: - epithelial - prokaryotic - umbilical - amniotic A:
amniotic

Q: Mixtures that have the same composition throughout are known as what kinds of mixtures? Read this paragraph and choose the correct option from the provided answers: Some mixtures are homogeneous. This means they have the same composition throughout. An example is salt water in the ocean. Ocean water everywhere is about 3.5 percent salt. Choices: - contiguous - zygomatic - heterogeneous - homogeneous A:
homogeneous

Q: What results when birth rates fall even lower than death rates? Read this paragraph and choose the correct option from the provided answers: In some countries, birth rates have fallen even lower than death rates. As result, their population growth rates are negative. In other words, the populations are shrinking in size. These populations have top-heavy population pyramids, like the one for Italy shown in Figure below . This is a new stage of the demographic transition, referred to as Stage 5. You might think that a negative growth rate would be a good thing. In fact, it may cause problems. For example, growth-dependent industries decline. Supporting the large aging population is also a burden for the shrinking younger population of workers. Choices: - disease - mutation - increased growth rate - negative growth rate A:
negative growth rate