Answer
Classification of organisms is done while considering many factors such as:
Cell type- whether the organism is prokaryotic or eukaryotic
Cell structure- This includes both the presence and composition of the cell wall
Body type- whether the organism is multicellular or unicellular
Mode of nutrition- the method through which the organism achieves its nutritional requirement, by consuming other organisms (heterotroph) or making its own food (autotroph)
Explanation:
found this from another question. not mine
Answer:
Sahelanthropus
Explanation:
Sahelanthropus is the oldest known possiblle hominin (usually referred to as a proto-hominin) that has been found to date; Its fossils date back about 7-6 million years. It lived in west-central Africa, just after our ancestor diverged from chimpanzees and bonobos.
Light is trapped by chlorophyll.
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).
Metaphase is the process third of mitosis when the chromosomes line up in the middle of the cell due to the spindle fibers pulling them in a single file line. Also the spindle fibers connect to the centromeres. Hope this helps :)