Answer the following question given this paragraph: 29.4 Reptiles The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. The early amniotes diverged into two main lines soon after the first amniotes arose. The initial split was into synapsids (mammals) and sauropsids. Sauropsids can be further divided into anapsids (turtles) and diapsids (birds and reptiles). Reptiles are tetrapods either having four limbs or descending from such. Limbless reptiles (snakes) are classified as tetrapods, as they are descended from four-limbed organisms. One of the key adaptations that permitted reptiles to live on land was the development of scaly skin containing the protein keratin, which prevented water loss from the skin. Reptilia includes four living clades: Crocodilia (crocodiles and alligators), Sphenodontia (tuataras), Squamata (lizards and snakes), and Testudines (turtles). Q: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by what? Choices: - hard shell - yolk - albumen - amniotic membranes A:
amniotic membranes
Answer the following question given this paragraph: Interspecific competition happens when individuals of different species strive for a limited resource in the same area. Since any two species have different traits, one species will be able to out-compete the other. One species will be better adapted to its environment, and essentially "win" the competition. The other species will have lower reproductive success and lower population growth, resulting in a lower survival rate. For example, cheetahs and lions feed on similar prey. If prey is limited, then lions may catch more prey than cheetahs. This will force the cheetahs to either leave the area or suffer a decrease in population. Q: What occurs when individuals of different species strive for a limited resource in the same area? Choices: - vegetal competition - asexual competition - intraspecific competition - interspecific competition A:
interspecific competition
Q: Answer the following question given this paragraph: Binary Acids Some compounds containing hydrogen are members of an important class of substances known as acids. The chemistry of these compounds is explored in more detail in later chapters of this text, but for now, it will suffice to note that many acids release hydrogen ions, H+, when dissolved in water. To denote this distinct chemical property, a mixture of water with an acid is given a name derived from the compound's name. If the compound is a binary acid (comprised of hydrogen and one other nonmetallic element): 1. The word "hydrogen" is changed to the prefix hydro2. The other nonmetallic element name is modified by adding the suffix -ic 3. The word "acid" is added as a second word. Q: Some compounds containing hydrogen are members of an important class of substances known as what? Choices: - proteins - ions - bases - acids A:
A: acids
Question: Answer the following question given this paragraph: Q: The e. coli chromosome, like many other bacterial chromosomes, is what shape? Choices: - oval - square - triangular - circular A:
Answer: circular
*Question*
Answer the following question given this paragraph: 41.2 The main stages of food processing are ingestion, digestion, absorption, and elimination. Q: What are the four stages of food processing? Choices: - ingestion, digestion, elimination and extinction - ingestion, digestion, absorption, and reproduction - ingestion, reproduction, absorption, and elimination - ingestion, digestion, absorption, and elimination A:
**Answer**
ingestion, digestion, absorption, and elimination
Q: Answer the following question given this paragraph: Cell division is how organisms grow and repair themselves. It is also how many organisms produce offspring. For many single-celled organisms, reproduction is a similar process. The parent cell simply divides to form two daughter cells that are identical to the parent. In many other organisms, two parents are involved, and the offspring are not identical to the parents. In fact, each offspring is unique. Look at the family in Figure below . The children resemble their parents, but they are not identical to them. Instead, each has a unique combination of characteristics inherited from both parents. Q: How do organisms grow and repair themselves? Choices: - cell death - mutation - symbosis - cell division A:
A: cell division