C) As hydrilla is aquatic in nature, the roots do not have to search for water, and there is no need for xylem to absorb water because the plant is surrounded by water.
Answer:
Amphibians
Explanation:
They had just shown up during the Carboniferous period and were still living in the water.
Answer: melanin
Explanation: Further, other cells contribute to the function of the epidermis. Melanocytes are cells that produce melanin, a compound involved in skin pigmentation produced in response to ultraviolet (UV) light exposure (6). Melanin can absorb energy from UV light to shield underlying tissues from damage.
Correct answer: False
A primary source provide the first hand proof and the original information of the event, object, person or work.
Example: Research data, e.g. public opinion polls, speech
Secondary source is that source of information that is not performed or collected by the individual but it is taken from old information. It is updated by someone who is not participation in the event or the research.
Example: Library, ebook, reviews.
A decomposer.
I hope this helps you, and have a good night! :D
