Answer:
Option (3).
Explanation:
Teratogens may be defined as the chemicals that can cause birth defects in the fetus. Substances like alcohol, lead and nicotine acts as the main agents of tertaogens.
Shamona is drinking water that contains high level of lead. The element lead is harmful for the fetus. Even the small concentration of lead is enough to cause birth defects. The lead exposure can cause the abnormal development of brain and damages the brain of fetus. The fetus has low birth weight also.
Thus, the correct answer is option (3).
Answer:
Why is the alarm calling of the vervet monkey an example of advanced communication? <em>The response is learned and stays consistent over time</em>
Explanation:
As a result of biological clock which is set by every living organism, which comes as a result of continuous experience of a thing over a period of time. At a point the body system adapts and react exactly when such occurrence happens like that of alarm calling of the vervet monkey
Commensalism is where one animal benefits and the other one does not benefit but it is not harmed
Parasitism is where one animal benefits and the other is harmed in the relationship
Answer:
Notice the large difference in the number of hydrogen ions on the two sides of the membrane. This difference is a hydrogen ion, or proton, concentration gradient. The energy associated with this gradient is used to synthesize ATP from ADP and Pi. This occurs at the ATP synthase complex.
Explanation:
