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Swampy, marsh like areas. Anything with algae and water.
Answer: The correct option is c. Segmentation evolved more than once in different branches of the cladogram.
Phylogenetic studies help to identify and understand evolutionary relationship between different life forms. It uses a diagram called as Cladogram to represent the branching of the evolutionary relationships. In cladogram studies each branching point tells a fundamental character of the evolutionary significance. Cladogenesis separates the gene pool by splitting into two or more than two separate pools each of which gives rise to one or more new species. Segmentation implies repeated parts and many animals consist of such repeated parts. Therefore, segmentation appears more than once in different cladogram branches.
The correct answers are:
3) the nuclei of most euk cells contain chromosomes found in homologous pairs - diploid. one member from mother, one from father. At meiosis, one of two members segregates into daughter nucleus. Gametes have one set of chrms - haploid.
4) during formation of haploid cells, diff types (nonhomologous) chrms segregate independently from eachother
Chromosomes are structures that represent the genetic material of an organism and consist of DNA and proteins packed together.
The chromosome theory of inheritance claims that :
Chromosomes are organized in homologous pairs, one member from the mother and one from the father. During the meiosis (formation of gametes) the members of a homologous pair separate, each gamete receives one member which is selected randomly. The members of different chromosome pairs (nonhomologous) are sorted into gametes independently of one another in meiosis.
The chromosome theory explains the behavior of chromosomes during meiosis and helps understanding why genes are inherited according to Mendel’s laws.
