Ans.
Fungi are eukaryotic (both unicellular and multicellular), heterotropic organisms that depend on plants, animals, or organic dead matter for food. Fungi reproduce either sexually or asexually.
-Mating types show molecular mechanisms to regulate compatibility in sexual reproduction in fungi. The organisms of class basidiomycota, such as club fungi, have bipolar mating system, means they have both positive and negative mating strand. The option 1). correctly matches with D). club fungi.
-The fruiting bodies of fungi are defined as the specialized structures that produce spores. In sac fungi, fruiting bodies are formed sexual reproduction that fills thousands of asci or spores in it. The option 2). correctly matches with C). sac fungi.
-The chytrids show one of the early lineages of fungi. They possess a cell wall of chitin, a flagellum, absorptive structures for nutrition. The option 3). correctly matches with A). chytrids.
- The common molds include various microscopic fungal species, which grow in the form of hyphae (multicellular filamentous structures). They are found nearly everywhere and show all forms of nutrition. They feed from dead organic matter, plants, and animals (as using them hosts). The option 4). correctly matches with B). common molds.
Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.
Answer:
Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.
Explanation:
Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body. Waste products of digestion pass through the large intestine and out of the body as a solid matter called stool.