Answer:
three evolutionary lines
Explanation:
The Hox genes are master developmental genes found in animals, which are involved in the regulation of development by specifying the body plan of an embryo along the head-tail axis. Recently, several research groups studied the assortment of the Hox genes in three different marine organisms: 1- a priapulid worm (an unsegmented marine worm), 2- a brachiopod (phylum Brachiopoda), and 3- a polychaete worm (related to earthworms). Then, these research groups combined their research efforts to compare the assortment of the Hox genes observed in these species to those observed in previously studied animals including, among others, mice, fruit flies and sea urchins. From this combined study, researchers concluded that the animal kingdom can be divided into three primary evolutionary lineages.
<u>Answer:</u>
Segregating the bacerial chromosomes during cell division is not a function associated with the cytoskeleton of bacteria
<u>Explanation:</u>
- A cytoskeleto is in the cytoplasm of cells including archaea and bacteria.
- Cytoskeleton is responsible for the cell division, 'cell morphogenesis' is the process responsible for generation of the complex shapes of adults from the cells, DNA partitioning and cell motility.
- The structure, behaviour and function of the cytoskeleton varies upon every organism and the type of cell.
The logistic model takes the shape of a sigmoid curve and describes the growth of apopulation as exponential, followed by a decrease in growth, and bound by a carrying capacity due to environmental pressure
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The logistic model takes the shape of a sigmoid curve and describes the growth of a population as exponential, followed by a decrease in growth, and bound by a carrying capacity due to environmental pressure
the part of the heart takes blood from the veins and pumps it into ventricle is called atria