Answer: The bottom zone of the ocean
Explanation:
The bottom zone of ocean has the lowest biodiversity because of the temperature and high pressure.
There are only few organism that are found at such an variable condition.The fishes that are found there have no eyes and are flat in structure.
There is no light and aquatic animals use their receptors to sense their food and enemy.
The correct answer is bottom zone of ocean has the least variety of biodiversity.
Answer:
The egg cell is fertilized by the sperm cell in the ovary of the flower.
Explanation:
It is similar to human fertilization and the rest of the answers are incorrect.
Answer: The reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn
Explanation: As can be seen from the energy diagram, the reaction which leads to burning of candle and shown by a blue curve require higher activation energy , i.e energy required to cross the energy barrier and get converted to products. It also takes more time for completion.
The reaction which leads to exploding firework and shown by a orange line and requires less activation energy , i.e energy required to cross the energy barrier and get converted to products. It takes less time for completion.
The answers are;
The muscular contractions are wave-like
The muscular contractions are entirely involuntary
This action is called peristalsis.
It is powered by the expansion and contraction of the smooth muscles present in the esophagus. It is controlled by the sympathetic activity of the autonomic nervous system hence
the movements are involuntary.