The bones of this pterosaur were studied for carbon-14 levels was 1/4 the original amount. If carbon-14 has a half life of 10,000 years, how old are these specimen?

How many nucleotides are needed to code for an amino acid

What is a domed shape geologic structure with gently sloped sides

The nucleus of a cell contains genetic material and many proteins. The interaction between these proteins and genetic material forms various structures. Match each of the following terms with the statement that describes the term. 1. protein 2.

The Fda has set a reference daily intake for how many minerals?

What term describes something that can cause cancer? carcinogen cleavage metastasis prokaryote

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.