Answer:
A
Explanation:
Homeostasis is the maintaining of internal conditions. Answer A is correct because it is maintaining internal conditions which is the blood temperature.
The number of children who became orphans because of HIV or
AIDS was estimated to be around 13 million in number. United Nations defines an
orphan as a child who has either lost one or both parents. As of 2015, an
estimation of 13.4 million children and adolescents in the world became orphans
due to HIV/ AIDS.
Answer:
A) & B)
Explanation:
A) There are certain viruses that are present in both healthy and disease people.
Example: Polio virus is found in many human but it causes disesease in only 1% of human.
B) Viruses require host machinery for replication so they may not replicate in pure culture.
The postulate C is also violated, the virus may not produce disease in non-human experimental host because of inappropriate animal or vaccinated animal etc. Others exception includes, the same disease may be caused by various organisms and different organisms can also cause the same disease.
Cortex is the stores the food and water for roots