Answer: Septum
Explanation:
In the normal heart, the right and left chambers are completely separated from each other by a wall of muscle called a septum. The right atrium is separated from the left atrium by the atrial septum and the right ventricle is separated from the left ventricle by the ventricular septum.
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Bacteria grow and reproduce more quickly when they are warm than when they are cold. It would be dangerous to incubate (keep and grow) cultures at temperatures close to body temperature (37°C) because doing so might allow the growth of pathogens harmful to health.
The answer is B
Answer:
<em>Animalia is a kingdom which has different phyla. There are thirty six phyla in animal kingdom but nine are the major ones and they are – </em><em>Porifera, Cnidaria, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata and Chordata. </em>
Explanation:
The organisms are classified on the basis of complexity. The complexity increases with increase in the mentioned phyla.
Humans are the most complex organism that perform several functions. The least evolved phyla is porifera and the most evolved phyla is chordata.