The answer for this question is C.
Answer:
An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.
Explanation:
In general, stem cells have 3 main properties:
1) They are capable of dividing and renewing for long periods of time.
2) They are unspecialized cells.
3) They can give rise to specialized cells.
Answer:
The correct answer will be option C- aggressive behavior is displayed to establish hierarchy without violence.
Explanation:
Aggressive behavior is a behavior which is produced to eliminate the competition by the opponent by expressing it physically, emotionally or verbally. Aggression is widespread in the animal kingdom which could be could be predatory between two different species or among members of same species.
Species establishes itself by showing anger and injuring others through fight which helps in establishing themselves as powerful member usually and during mating season.
Thus, option C is the correct answer.
