The ( nitrogenous bases) of dna form the rungs linking the ( base) strands together through ( a base pair)
Carolus Linnæus
<span> Taxonomy, responsible for many scientific classifications and influences in various field of life sciences or biology. Evidences that Taxonomy uses to group or categorizes species range from </span><span><span>
1. </span>"Fossil Records</span> <span><span>
2. </span>Comparative anatomy</span> <span><span>
3. </span>Comparative embryology</span>
4. Biochemical information <span><span>
5. </span>Cellular structure</span> <span><span>
6. </span>Behavior</span>"
<span>We also suggest that taxonomy has played various roles mainly in many aspects in Zoology, Botany, Anatomy and Physiology –aspects that include animal and human structures and functions. As the biotic community is so diverse it is classified to Biodiversity and the existence of properly assorting by set standard.<span> </span></span>
anaerobic and does not require oxygen
when the fetus is exposed to a teratogen during the embryonic period is delay in growth
<h3>
What are some teratogens that affect the fetus?</h3>
Teratogens are any agents that cause an abnormality in a foetus after exposure during pregnancy. Teratogens are typically discovered following an increase in the prevalence of a specific birth defect. In the early 1960s, for example, thalidomide was used to treat morning sickness. The early exposure of the foetus resulted in cases of phocomelia, a congenital malformation in which the hands and feet are attached to abbreviated arms and legs.
Teratogens can also be found in the home or at work. The effect is dependent on the type of agent, dose, duration, and time of exposure. The first half of a pregnancy is the most hazardous. Infectious agents (rubella, cytomegalovirus, varicella, herpes simplex, toxoplasma, syphilis, and others) .
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