Answer the following question given this paragraph: The stomach mucosa's epithelial lining consists only of surface mucus cells, which secrete a protective coat of alkaline mucus. A vast number of gastric pits dot the surface of the epithelium, giving it the appearance of a well-used pincushion, and mark the entry to each gastric gland, which secretes a complex digestive fluid referred to as gastric juice. Although the walls of the gastric pits are made up primarily of mucus cells, the gastric glands are made up of different types of cells. The glands of the cardia and pylorus are composed primarily of mucus-secreting cells. Cells that make up the pyloric antrum secrete mucus and a number of hormones, including the majority of the stimulatory hormone, gastrin. The much larger glands of the fundus and body of the stomach, the site of most chemical digestion, produce most of the gastric secretions. These glands are made up of a variety of secretory cells. These include parietal cells, chief cells, mucous neck cells, and enteroendocrine cells. Parietal cellsLocated primarily in the middle region of the gastric glands are parietal cells, which are among the most highly differentiated of the body's epithelial cells. These relatively large cells produce both hydrochloric acid (HCl) and intrinsic factor. HCl is responsible for the high acidity (pH 1.5 to 3.5) of the stomach contents and is needed to activate the protein-digesting enzyme, pepsin. The acidity also kills much of the bacteria you ingest with food and helps to denature proteins, making them more available for enzymatic digestion. Intrinsic factor is a glycoprotein necessary for the absorption of vitamin B12 in the small intestine. Chief cellsLocated primarily in the basal regions of gastric glands are chief cells, which secrete pepsinogen, the inactive proenzyme form of pepsin. HCl is necessary for the conversion of pepsinogen to pepsin. Mucous neck cellsGastric glands in the upper part of the stomach contain mucous neck cells that secrete thin, acidic mucus that is much different from the mucus... Q: The stomach mucosa's epithelial lining consists only of surface mucus cells, which secrete a protective coat of what? Choices: - bile mucus - phosphate mucus - acidic mucus - alkaline mucus A:
alkaline mucus
Answer the following question given this paragraph: Ways to prevent atherosclerosis include eating healthy foods, getting plenty of exercise and not smoking. A diet high in saturated fat and cholesterol can raise your body's cholesterol levels, which can lead to increased plaque in your arteries. Cholesterol and saturated fat are found mostly in animal products, such as meat, eggs, milk and other dairy products. Q: An increase in the body's cholesterol levels can lead to your arteries filling with what? Choices: - triglycerides - fat - marble - plaque A:
plaque
Q: Answer the following question given this paragraph: Bacterial Disease Vectors. Ticks spread bacteria that cause Lyme disease. Deerflies spread bacteria that cause tularemia. Q: Ticks spread bacteria that causes what condition? Choices: - Rabies - Malaria - Dengue fever - lyme disease A:
A: lyme disease
Question: Answer the following question given this paragraph: Vitamins are organic compounds that the body needs in small amounts to function properly. Humans need 13 different vitamins. Some of them are listed below ( Table below ). The table also shows how much of each vitamin you need every day. Vitamins have many roles in the body. For example, Vitamin A helps maintain good vision. Vitamin B 9 helps form red blood cells. Vitamin K is needed for blood to clot when you have a cut or other wound. Q: What are the organic compounds that the body needs in small amounts to function properly; humans need 13 different ones? Choices: - minerals - proteins - nutrients - vitamins A:
Answer: vitamins
*Question*
Answer the following question given this paragraph: The three types of plant cells are found in each of the major types of plant tissues: dermal, ground, and vascular tissues. Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis. It mediates most of the interactions between a plant and its environment. Ground tissue makes up most of the interior of a plant. It carries out basic metabolic functions and stores food and water. Vascular tissue runs through the ground tissue inside a plant. It consists of bundles of xylem and phloem, which transport fluids throughout the plant. Q: What type of tissue covers the outside of a plant in a single layer of cells called the epidermis? Choices: - dorsal - mucous - anterior - dermal A:
**Answer**
dermal
(Q).
Answer the following question given this paragraph: Since natural selection acts on the phenotype, if an allele causes death in a homozygous individual, aa , for example, it will not cause death in a heterozygous Aa individual. These heterozygous Aa individuals will then act as carriers of the a allele, meaning that the a allele could be passed down to offspring. People who are carriers do not express the recessive phenotype, as they have a dominant allele. This allele is said to be kept in the population's gene pool. The gene pool is the complete set of genes and alleles within a population. Q: What is the term for the complete set of genes and alleles within a population? Choices: - the ancestral pool - the chromosomal pool - the biodiversity pool - the gene pool A:
(A).
the gene pool