Biologists use ball-and-stick models to stuóy complex molecules by representing atoms with balls and bonds with sticks. DNA is
a biological molecule that contains millions of atoms. What is a limitation of using a ball-and-stick model for DNA?
Some kinds of atoms that are found in DNA must be left out of the models.
DNA has so many atoms that the size and cost of a model could be too great.
It is impossible to distinguish different kinds of atoms with models.
The chemical bonds between the atoms in DNA must be part of the models.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.