Why is muscle tissue red

The outer core layer is made up of iron and some nickel? True or False?

What is the term referring to the type of reaction occuring when complex molecules are formed from simpler molecules and water is removed

How would you expect selection against mutations to impact the slope of a best fit line of genetic differences between virion populations? The slope would ... A. Increase. B. Decrease. C. Stay the same.

The solution inside a plant cell is approximately a 1% saline solution. in a 25% nacl solution the cytoplasm of a plant cell will what

Where is the nucleus of an atom located?

10. Which of the following is an emerging dis- ease that was unknown 50 years ago? a. malaria b. dengue fever C. Lyme disease d. schistosomiasis

You eat a large meal and then hike up a hill. What kind of energy transformation is your body performing? A. Chemical energy to kinetic energy and nuclear energy B. Potential energy to sound energy and nuclear energy C.

Which nervous systems balance each other to provide homeostasis?

The modern classification system is based on A - putting organisms into categories based on where they live. B - putting organisms into categories based on how they reproduce. C - putting organisms into categories based on similar characteristics.

Classify the mutations as somatic or inherited A. Mutations in the KRAS gene in lung cells promote continuous cell growth B. Mutations of the BRAC1 gene in egg cells lead to breast cancer C.