they are caused by mutation. the best example of it are human blood groups.
Answer:
Non-vascular plants are plants without a vascular system consisting of xylem and phloem. ... Bryophytes, an informal group that taxonomists now treat as three separate land-plant divisions, namely: Bryophyta (mosses), Marchantiophyta (liverworts), and Anthocerotophyta (hornworts)
please mark brainliest
Answer: Nucleus Acids
Explanation: Nucleic Acids hold and store DNA (think Nucleic/Nucleus)
Answer:
The correct answer is option C. They absorb water vapor from the atmosphere, providing water to the plant for photosynthesis.
Explanation:
Stomata are small opening present on the lower side of leaf. Its main function is to exchange of gases that are required for the process of photosynthesis. During day time, stomata are open and carbondioxode which is a raw material used for the production of glucose is absorbed from air and oxygen is released in the atmosphere.