Spontaneous genetic mutations are one cause of cancer. They can happen at any time for various reasons such as exposure to certain carcinogens. Researchers are working to understand more about their causes. If X is the number of mutations present in a person's body at time Y, then X is a(n) variable.

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.