What is the shape of dna called? allele, nucleus, chromosome or a protein.

Air pollution is only caused by human activity, select the best answer from the choices provided ot of true or false

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line