The siberian husky is a medium dog, weighing between 16-27kg (35-60lbs). these dogs have strong pectoral and leg muscles, allowing them to move through dense snow. if they had heavier muscles, they would sink deeper into the snow and move slower. yet, if they had lighter muscles, they would not be strong enough to pull sleds and equipment. this is an example of which type of natural selection?

directional selection
stabilizing selection
disruptive selection

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.

Which of the following is a common response to cell signaling?

The image below shows a weather service map. which details best describe this map? check all that apply