Its when one species marries another species
A is true, the others are not. I would assume they count the mRNA and tRNA in protein synthesis as 'double stranded'
Please fix your question, and this belongs in science, not biology. When the ball hits it's maximum height, it's kinetic energy will change to zero, and it will be converted to potential energy.
Okay so I just took the test and it said the answer is <span>Something changed to limit and finally abolish their success in this environment! I hope this helps!</span>