Maybe a concussion or fractured vertebrae. Please mark Brainliest!!!
Answer: Adenine, Guanine, Thymine or Uracil and Cytosine
Explanation: Nitrogenous bases are one of the major constituents of nucleic acids. They contain nitrogen and act as bases in reactions.
The criteria pollutants are carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter, and sulfur dioxide.
Answer:
the answer is D
Amphibians rarely has scales
most amphibians have four limbs and lays their egg in an aquatic environment
Their skins are moist but isn't completely water tight
hope this helps :)
Explanation:
