(Originais Teachy 2023) - Question Easy of Biology

The circulatory systems of animals vary significantly depending on their complexity and physiological needs. Considering the different types of animals that exist, which of the following options correctly represents the circulatory system of an annelid, such as a earthworm?

Plants are eukaryotic photosynthetic organisms that have cells with cellulose cell walls. The basic structure of plants includes roots, stems, and leaves, which perform specialized functions such as water and nutrient absorption, support, and photosynthesis. Differentiate plants from other biological kingdoms, highlighting a unique characteristic of plants that distinguishes them from others. Additionally, mention two main subgroups of the Plant Kingdom and a distinctive characteristic of each.

In an experiment with Drosophila melanogaster, a researcher observed that the gray-bodied fly (gene A) and short wings (gene B) were frequently inherited together, while the black-bodied fly and long wings were also commonly observed together. After crosses and analyses, the researcher concluded that genes A and B demonstrate a pattern of linkage and that the recombination frequency between them is 10%. What is the definition of linkage and how can the recombination frequency between genes A and B be used to determine the genetic distance between them in centimorgan map units (cM)?