The leaf support should actually be water. if in hot and dry weather, the leaf loss so much water that will make the plant cells flaccid and wilt.
It's B
Hope that helps, Good luck! (:
Answer:
either RNA or DNA
Explanation:
The advancement of biomedical research techniques and molecular biology has led to the observation of the close relationship between certain viruses and some cancers in various animals. Thus, it has been shown that several DNA and RNA viruses are oncogenic in a wide variety of animals, from amphibians to primates, and there is growing evidence that some human cancers have a viral origin.
Based on this, we can conclude that oncogenic viruses can be composed of DNA or RNA.
Answer:
sensors, control center, communication system, target
Explanation:
