Why do geologists think Earth's core contains mostly iron? A. The crust also contains mostly iron.
B. The entire core is a solid mass.
C. Iron is the lightest element.
O D. Comets contain more iron than Earth's crust does.
SUBMIT

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

What makes a dominant allele different from a recessive allele