An engineer wants to build a bridge made of concrete and steel. The bridge needs to be able to withstand forces like tension, comprension and stretching.

Which mechanical properties of the materials to be considered?

strength and elasticity
elasticity and density
flexibility and elasticity
strength and hardness

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.

Lucia is walking barefoot in her yard. she accidentally steps on a nail. how will her nervous system work to generate a reaction? arrange the eventschronologically.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?