Answer the following question given this paragraph: Acids and bases are important in living things because most enzymes can do their job only at a certain level of acidity. Cells secrete acids and bases to maintain the proper pH for enzymes to work. For example, every time you digest food, acids and bases are at work in your digestive system. Consider the enzyme pepsin, which helps break down proteins in the stomach. Pepsin needs an acidic environment to do its job, and the stomach secretes a strong acid that allows pepsin to work. However, when stomach contents enter the small intestine, the acid must be neutralized. This is because enzymes in the small intestine need a basic environment in order to work. An organ called the pancreas secretes a strong base into the small intestine, and this base neutralizes the acid. Q: In what organ does pepsin help break down proteins? Choices: - kidney - liver - skin - stomach A:
stomach
Answer the following question given this paragraph: Parthenogenesis Parthenogenesis is a form of asexual reproduction in which an egg develops into an individual without being fertilized. The resulting offspring can be either haploid or diploid, depending on the process in the species. Parthenogenesis occurs in invertebrates such as water fleas, rotifers, aphids, stick insects, and ants, wasps, and bees. Ants, bees, and wasps use parthenogenesis to produce haploid males (drones). The diploid females (workers and queens) are the result of a fertilized egg. Some vertebrate animalssuch as certain reptiles, amphibians, and fishalso reproduce through parthenogenesis. Parthenogenesis has been observed in species in which the sexes were separated in terrestrial or marine zoos. Two female Komodo dragons, a hammerhead shark, and a blacktop shark have produced parthenogenic young when the females have been isolated from males. It is possible that the asexual reproduction observed occurred in response to unusual circumstances and would normally not occur. Q: What is it called when an egg develops into an individual without being fertilized? Choices: - symbiosis - abiogenesis - metamorphosis - parthenogenesis A:
parthenogenesis
Q: Answer the following question given this paragraph: Q: What is the name for the male gamete? Choices: - ova - chromatid - egg - sperm A:
A: sperm
Question: Answer the following question given this paragraph: Q: What property makes bone marrow cells ideal for gene therapy? Choices: - behavior reproduction - irreversible reproduction - Matching - lifelong reproduction A:
Answer: lifelong reproduction
*Question*
Answer the following question given this paragraph: The photos in Figure below show how farming practices can increase soil erosion. Plant roots penetrate the soil and keep it from eroding. Plowing turns over bare soil and cuts through plant roots. Bare soil is exposed to wind and water. In the past, farmers always plowed fields before planting. Some farmers now use no-till farming, which does not disturb the soil as much. Q: No-till farming is one effort to combat what, caused by typical farming practices? Choices: - habitat destruction - drought - pollution - soil erosion A:
**Answer**
soil erosion
Q: Answer the following question given this paragraph: Q: What are unique in having adaptive immunity in addition to innate immunity? Choices: - invertebrates - cells - organelles - vertebrates A:
A: vertebrates